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When ace high school detective Jimmy Kudo is fed a mysterious substance by a pair of nefarious men in black—poof! He is physically transformed into a first grader. Until Jimmy can find a cure for his miniature malady, he takes on the pseudonym Conan Edogawa and continues to solve all the cases that come his way.

In this exciting volume:

A diplomat is found dead in his study and Conan's on the case. But what exactly happened? The elder statesman was definitely murdered, but the door and windows to his private chamber were all locked from the inside. How in the world did the killer escape?

And, as if that wasn't bad enough, Conan and his pals get swept up in a missing person caper at the local library. Murder, kidnapping and drug smuggling aren't exactly the sorts of things condoned by librarians. What's the connection? Conan thinks he knows the answer but he's got more pressing things to worry about—like escaping the deadly grasp of the fiendish miscreant!

192 pages, Paperback

First published April 18, 1996

43 people are currently reading
932 people want to read

About the author

Gosho Aoyama

981 books1,207 followers
Gosho Aoyama (青山剛昌) is a Japanese manga artist. He is best known as the creator of the manga series Detective Conan (known in the United States, Canada, and the United Kingdom as Case Closed).

Aoyama made his debut as a manga artist with the work Chotto Matte which was published in the weekly magazine Shōnen Sunday on winter of 1987. Shortly after that, another work by Aoyama, Magic Kaito, was published on the same magazine.

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5 stars
1,682 (57%)
4 stars
866 (29%)
3 stars
333 (11%)
2 stars
38 (1%)
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8 (<1%)
Displaying 1 - 30 of 91 reviews
Profile Image for Aisvarya (Semi-hiatus).
145 reviews57 followers
October 31, 2025
another great volume!!

not me planning to re-read just the first two volumes this week & already on to the 10th volume cuz I love this series sm!! (you have to suspend your disbelief a lot but I like the different cases we get🙈)
Profile Image for Sonja Rosa Lisa ♡  .
5,113 reviews638 followers
April 1, 2017
Nahtlos schließt dieser zehnte Band an seinen Vorgänger an. Hier gibt es endlich die ersehnte Auflösung aus dem letzten Fall von Band 9. Und gleich geht es spannend weiter.

In diesem Band gibt es einen "besonderen Gast", was mich sehr gefreut hat! Schade, dass es wirklich nur ein kleiner Gastauftritt ist, aber ich denke, wir werden ihn in einem der zahlreichen nachfolgenden Bände sicher noch einmal wiedersehen. Darauf bin ich jetzt schon sehr gespannt.

Und gespannt darf man auch auf Band 11 sein, denn leider endet auch dieser zehnte Band wieder mit einem Cliffhanger.

Trotzdem habe ich das Lesen wieder einmal sehr genossen. Die Zeichnungen gefallen mir sehr, und es macht einfach Spaß, gemeinsam mit Conan Rätsel und spannende Mordfälle zu lösen!
Profile Image for ♡︎.
663 reviews3 followers
September 26, 2023
i love how consistent these volumes have been so far! in this volume, we are introduced to jimmy’s rival who in the beginning seems like great competition for jimmy in a classic locked room murder mystery but in the end is easily one-upped by jimmy himself. jimmy coming back for like 10 minutes was so worth it and it made me happy but also annoyed because in my opinion the entire series would have been so much better with jimmy not turning into a kid. the reveal of the murderer was a great surprise because i couldn’t get it right and i loved that. the execution of the murder was a very questionable theory though it was so unbelievable lmao.

i also really liked the second mystery even though i normally don’t like it when the murderer is revealed at the very beginning. the second mystery involved a crazed librarian and it was so fun seeing the kids outwit the librarian in the end.

the third mystery frustrated me as usual because it ended on a cliffhanger so now i have no choice but to start the next volume asap because the mystery and the setting are intriguing. we have a ski trip and the family end up staying overnight in their neighbor’s lodge after being locked out. unfortunately a murder most foul happens as usual and it’s up to jimmy/conan to help rachel’s dad figure out whodunit.

time to go find out!
Profile Image for QueenInTheNorth.
519 reviews11 followers
October 30, 2025
In einem Anfall von Nostalgie habe ich vor Kurzem den Anime nochmal angefangen zu schauen und mir gedacht, dann könnte ich mir ja den Manga ebenfalls wieder zu Gemüte führen. Habe bewusst mit Band 10 begonnen, weil da einer meiner absoluten Lieblingscharaktere seinen ersten Auftritt hat, nämlich Hattori Heiji <3
Es war sehr amüsant und ich bin ganz nostalgisch geworden. Band 11 wartet schon ;D
Profile Image for Marta.
115 reviews33 followers
December 26, 2019
This volume features one of my favorite cases and three fairly enjoyable ones, so I knew it was going to meet my expectations. what do you mean I'm biased towards Heiji and Shinichi's return pfft

So maaaybe I was predisposed to the fact that the utter dumbass of Heiji Hattori is introduced here, since it's such a comical entrance and he's a key part to the plot, of course I was hyped. And how hilarious it is that Heiji was so focused on the competition he came up with in a whim while Shinichi was right there not giving a damn about the whole ordeal (Shinichi and his sick sleep-deprived ass was a mood tbh) without the other knowing.

can you believe these two smh

(Hattori your giant bi crush on Kudo is showing.)

Did I mention Shinichi freaking Kudo got his body back temporarily? If the hype wasn't already killer, also the surreality of it being triggered by Hattori, let's not forget the drama™ of it all. I'm so sorry Ran, baby, this moron doesn't deserve you but he's also helpless so give him at least the benefit of the doubt because he's trying.

the punch in the feelios

This right here fucked me up. Real bad. The nostalgia trip is too strong.

Moving to the next case, the Junior Detective League always brings me a few laughs even if I find them frustrating at times -Shinichi Kudo, oblivious dad of three kids to the rescue, lol. Creepy is an understatement for the head librarian... It was a pretty good mystery, and the added resolution with Conan developing immunity to the liquor that brought his body back and then getting drunk cued the expected facepalm, heh.

The other two cases were cut halfway through but I remember them with fondness (yes, that's not the best word choice for a murder, what about it) and I liked reliving the details.

All in all, I'd say it's a pretty solid volume, with some plot development and the right balance of dramedy. It's a 7.5/10 from me.
This entire review has been hidden because of spoilers.
Profile Image for Rachel.
691 reviews218 followers
June 1, 2020
Another amazing series of deductions AND this is the first book Harley appears in! I can't wipe the grin off my face reading Detective Conan now (even though plenty of people are getting murdered) because there's something so lovable about the premise of Conan that persists throughout the series and these are the classic first few cases that I'm so nostalgic about (is that weird to be nostalgic about intense murder mysteries??)
Profile Image for Nining Sriningsih.
361 reviews38 followers
September 30, 2019
*baca di Gramedia Digital
=)

detektif dari Barat, Heiji pertama kali'y muncul..
terus Conan berubah jadi Shinichi gara-gara Arak Cina Paikal yg dibawa Heiji..
:D

kasus pembunuhan di perpustakaan bersama detektif cilik..
dan kasus pembunuhan di villa ski..
:D
Profile Image for Lexa^ .
77 reviews
April 11, 2021
★★★★☆ - 4.0
Yesss - finally!!
I am very split on this volume. It starts with a short resolution for the case that was built up in volume 9, then contains two full cases and the setup for another case that is split between this volume and the next.
I liked the resolution this volume started with, though I still didn’t feel all too invested in the characters, the case itself was interesting enough.
Then there was the second case. THE CASE! The first appearance of our all favourite detective of the west. And the deserved victory of the east.^^ I loved this case just as much as I remembered and for this case alone I wish the volume had been a five star one.
The third case however was not as interesting to me. The detective boys were amazing as ever, but I did not enjoy the setup of the case. This might only be me though, as I tend to enjoy cases with a big cast of suspects rather than the thrill of hiding from a known suspect. So yeah, that case was just fine.
The last case was again more interesting to me. Yet, I feel like we did not get to know a lot about the suspects or the victim and I am overall no fan of splitting these cases between volumes.
So yeah.. Overall this volume was just fine and objectively might even a three star… but I am not objective in these reviews and the second case was perfection <3
Profile Image for Tobbi Garcia.
375 reviews22 followers
July 18, 2019
El caso en el que vuelve Shinichi es de mis favoritos porque es la primera vez que pasa y es una luz de esperanza para conan
El caso del bibliotecario siempre me dió miedo, ya que el asesino tiene una cara de loco y es alto psicópata.
Y el caso de la nieve es donde nos empezamos a dar cuenta que hay una maldición que los sigue a estos personajes, a donde quiera que van hay un asesinato. 🤣
Profile Image for Jordan.
458 reviews
January 7, 2024
Conan becomes an junior high school student for a small bit of time and becomes an elementary school student again.
This entire review has been hidden because of spoilers.
Profile Image for Mayar Mahdy.
1,812 reviews1 follower
August 1, 2021
How come I don't remember the great detective of the west? He looks so cool. I love him.

The issue where he faces off with Conan was so good. I want more of that.
Profile Image for Sam.
405 reviews19 followers
November 26, 2020
*Note this volume ends in a cliffhanger!

Lots of great stuff in this volume! And the introduction for one of my favorite recurring characters--Harley/Heiji! <3

Case 1: Finishes where we left off with the cliffhanger from the last book. Pretty cold and troubling explanation, the motivation was really sad.

Case 2: We meet a new face as a young and famous Kansai detective comes in search of his (self-made) arch rival Jimmy! Things get lead astray as a client comes in to speak with Richard, which unintentionally leads them to a murder. It's a race to see who can solve the case first--Jimmy or the Kansai detective Heiji?

Okay, fan girl moment, I love Harley/Heiji! Was super psyched to finally reach this case! When I first saw the two part-er of this case in the anime, I was ENTHRALLED! It was so suspenseful, I was literally on the edge of my seat, mouth gapped, couldn't consume it fast enough! And my gosh, the manga is the same xD That full two page spread in file four is GOLD and DELIVERS!

And a quick note on the differences in the English translation:

Case 3: The Detective Kids are at it again, accidentally stumbling upon a missing person's case which turns deadly. Can the gang find the evidence and stay alive against a murderer?

I know this is irrelevant to English readers (I'm reading in Japanese), but having such a light read after binging several chapters was nice on my brain. Having these less text-intensive chapters make for good breaks. In any case, just the usual with this one. As I've said before, the kid's cases aren't my favorites, but this one was still cute and simple...apart from, you know, the dead body and murderer and everything lol

Case 4: It's a winter vacation to the mountains as Conan, Rachel, and Richard head off to the slopes. On their way back to their villa, Richard lost the key, and they end up in the home of a friendly neighbor. The night seems to go well as Conan and the gang meet a fun group of strangers, but the night gets abruptly cut off when one of them is found stabbed to death.

Unrelated, but sitting in my cold apartment, this story was extra cold! xD But it was a great start to another interesting mystery. I can't say anything too particular about this one, as it floats around the average for how things play out. I did especially love seeing them out having some fun at least, and of course the artwork is beautiful, as always!

This one ended in a cliffhanger, so until volume 11 ;)

For Japanese Learners:

Check my previous review on book two for more info. This is a series, so things are gonna be consistent.

The biggest exception with this particular volume is Heiji, as he speaks with Kansai-ben. It might take some getting used to if you're not familiar with it. I wouldn't stress too much to get it right away though, he pops up several times in the series, so there's plenty of content to practice with as you go along. :)

As for me, my timing per chapter is a touch faster, more consistently hovering around the 30 minute mark rather than 30-40. Sloooowly speeding up, haha.
Profile Image for Darcys_Lesestuebchen.
379 reviews2 followers
February 5, 2024
Es bleibt alles wie beim alten, aber irgendwie auch nicht, da nun ein anderen Jugenddetektiv auftaucht, der sich mit Schinischi messen möchte, wobei es da nicht direkt geht, aber Conan mischt trotz seiner fetten Erkältung dennoch gerne mit. Und auch für Kogoro und die Detectiv Boys gibt es ordentlich zu tun, denn das Verbrechen schläft nie.

Vorwort:
Das ist der zehnte Band der Manga-Reihe "Detektiv Conan" und auch, wenn die Fälle in sich abgeschlossen sind, sollte man der Reihe nach lesen, da die Grundgeschichte immer wieder fortgesetzt wird. Es ist als Taschenbuch, sowie e-book erhältlich. Ein Fall wird beendet, es kommen zwei abgeschlossene vor und zum Ende wird ein Fall wieder geteilt.

Meine Meinung:
Dieser Band gefiel mir wieder richtig gut, auch wenn mich nicht jeder Fall begeisterte, aber dadurch, dass Conan wieder er selbst sein darf und mit Heiji ein interessanter Charakter neu eingeführt wird, wurde es nie langweilig. Zunächst wird das Rätsel um die ertränkte Frau gelöst. Der Abschluss dieses Falls war richtig tragisch und berührte mich vor allem wegen der Großmutter.

Im zweiten Fall trifft Schinischi alias Conan auf seinen Konkurrenten Haiji, der nach Schinischi sucht, was ja aber schlecht geht. Mehr oder weniger lösen sie zusammen einen kniffligen Fall, den ich auch als Manga sehr interessant und mitunter humorvoll fand, wenn Kogoro mal wieder er selbst war und "ermittelte". Das Drama um den Mord war sehr tragisch.

Im dritten Fall suchen die Detectiv Boys nach einer Leiche und müssen sich vor einem gewieften Mörder in acht nehmen, der ihnen nichts Gutes will. Mir gefiel der Fall durchaus, weil ich die Vibes sehr mochte und die Atmosphäre echt gruselig fand. Allerdings zog es sich auch ein wenig und irgendwie war etwas die Luft raus.

Und im letzten Fall, der geteilt wurde, werden Kogoro, Ran und Conan die Skihütte eines reichen Direktors eingeladen, weil Kogoro die Schlüssel zu ihrer eigenen Hütte vergessen hat. Mir gefiel der Fall ganz gut, auch wenn der Cut etwas fies war und man schon wissen möchte, wer der Mörder ist.

Der Zeichenstil gefiel mir wieder sehr und ich hatte keine Probleme, dem Geschehen zu folgen. Toll war es, wie genau die Mimik der Charaktere dargestellt wurde und man immer ein gutes Gefühl für den Fall hatte.

Fazit:
Nicht jeder Fall packte mich hundertprozent und ich mochte den Cut nicht so sehr, aber insgesamt gefiel mir dieser Band echt gut und vor allem das Duell zwischen Haiji und Conan war klasse. Kogoro war wieder er selbst und ermittelte dementsprechend, was echt herrlich war. Ich hatte meinen Spaß und von mir gibt es:

5 von 5 Sterne
Profile Image for Sari Herbita.
70 reviews19 followers
January 17, 2021
Heiji Hattori datang mencari Shinichi Kudo. Muncullah seorang ibu yang meminta jasa Kogoro untuk mencari tahu mengenai calon menantunya. Saat Heiji, Kogoro, Conan, dan Ran datang ke rumah ibu tersebut, si suami ditemukan meninggal di ruang kerjanya. Efek meminum arak Paikal dan sedang flu berat, Conan pun berubah menjadi Shinichi. Heiji dan Shinichi pun bertarung deduksi untuk menyelesaikan kasus tersebut. Setelah menyelesaikan kasus, Shinichi kembali berubah menjadi Conan.

Mengira sudah menemukan obat penawar racunnya, Conan pergi ke perpustakaan karena mengira itu adalah terakhir kalinya mereka bisa bermain bersama. Di perpustakaan, Inspektur Megure datang untuk menyelidiki tentang salah seorang karyawan perpustakaan yang dikira dibunuh di perpustakaan. Geng detektif cilik mencoba mencari mayat tersebut, namun si pembunuh ternyata mengetahui itu dan mau membunuh mereka juga.

Kogoro, Conan, dan Ran pergi menginap di sebuah villa untuk bermain ski salju. Namun karena kunci villa hilang, mereka pergi ke villa milik tetangga untuk menumpang menelepon. Di villa tersebut, sedang terjadi pesta perkumpulan dokter sebuah universitas. Saat menonton drama sendirian, si guru besar dibunuh oleh salah satu dokter muridnya. Namun semua muridnya memiliki alibi saat waktu perkiraan terjadinya pembunuhan. Mengira kejahatannya sempurna, ternyata si guru besar meninggalkan sebuah pesan kematian.
This entire review has been hidden because of spoilers.
Profile Image for Stephen.
1,481 reviews3 followers
December 1, 2023
Volume 9 ended in a way that made me immediately want to read this volume to learn the conclusion to the case...and it was worth the wait. The first full case of this installment introduces a new character that I just feel will be around often enough by the way he was presented....Harley Hartwell. I am unsure if I like this character or not, but he will surely serve as a great storytelling device. He is introduced as they are trying to figure out a murder and there are now two different theories on how the crime was committed. The next story is about the Junior detectives and a murder in the school. Early on we pretty much know the murderer but the great aspects of this story is how it was done and how he is exposed. Finally we have a murder at a luxurious lodge during a winter storm on a snowy mountain. This volume ends without a conclusion to that story....so get excited about volume 11!
69 reviews1 follower
Read
December 2, 2025
Case Closed, Vol. 11Case Closed, Vol. 12

I read the following volumes online and they were just as good as the others. Although all the art work of the manga was digitalized, the plot was really great and again suspenseful. The addition of a new character, hattori, was a good addition to the plot and also to the little cases included within the volumes. More tension and connections were built and this made it even more interesting to read. However, the murder cases were quite brutal in these volumes so I wouldn’t recommend it to anyone who is sensitive to gore or anything like that. Other than that these volumes were a fun read.
Profile Image for endeavoursofvic.
865 reviews5 followers
September 21, 2021
Detektiv Conan 10: 4.5 Stars

This was such a pleasure. We start this Volume off with a great finale to a great case. Furthermore we meet a certain Detective from the West - reading Heijis first case is always very weird to me because I know it by heart (as in literally by heart) and I get a little bored with the case because of that - but that is on me for watching it 24/7 back in the day.
My favourite part of this Volume is actually the Detective Boys case. I adore how dramatic and characteristic it is. + the creepy vibes all over the place. Love it ♥
To end it off is the only thing that kind of drags this volume down and that is the first two chapters of a good case. Good as in decent, fine, nice, i like it - but not 5 Star Material.
56 reviews
October 19, 2023
INHALT: Zunächst wird der letzte Fall vom vorherigen Band noch in einem letzten Kapitel angehandelt.
Danach bekommt Conan - oder vielmehr Shinichi Kudo - Konkurrenz, denn ein 2., selbst ernannter Meisterdetektiv erscheint auf der Bildfläche. Doch obwohl dieser eine ganz schöne Nervensäge ist, schafft es Conan kurzzeitig, sich wieder in sein anderes Ich zu verwandeln. Gleichzeitig klärt Conan zusammen mit dem Detektiv aus Osaka einen Fall auf, in dem ein Diplomat ganz überraschend umgebracht wurde.
Der nächste Mord handelt von einem Bibliothekar und schnell ist klar, wer ihn umgebracht hat. Doch das müssen Conan und seine Grundschulfreunde erst mal beweisen.
Zu guter letzt sind Conan, Ran und ihr Vater im Skiurlaub. Weil sie den Schlüssel zu ihrer Hütte verloren haben, werde sie kurzerhand zu den Nachbarn eingeladen. Dabei handelt es sich um den Professor der medizinischen Fakultät für Chirurgie der Tokioter Universität und seine Assistenten. Dieser möchte vor dem Abendessen seine Lieblingssendung schauen, doch kommt niemals zurück.
MEINE MEINUNG: Die Auflösung vom letzten Fall fand ich ganz gut, da aber ein paar Tage dazwischen lagen, fehlte mir ein wenig der Bezug.
Den nächsten Fall fand ich generell nur in Ordnung, allerdings hat mir die Story um Conan sehr gut gefallen.
Den Mord vom Bibliothekar fand ich richtig cool, vor allem die Auflösung war total toll.
Der letzte Band wurde auch noch beinahe aufgeklärt, dementsprechend habe ich den Großteil in Band 10 beendet und auch gerne gemocht. Den Winter und Skihütten mag ich sowieso gerne.
Profile Image for Alan Castree.
451 reviews
July 5, 2025
In this volume we get:
- The resolution of the Wealthy Murder Case.
- The Diplomat Murder Case which introduces a favorite Hatori Heiji (the Kid Detective of the West) and Conan / Shinichi’s catchphrase 真実はいつも一つ!
- Conan gets drunk on shouchu.
- The Library Murder Case with the Detective Boys and yet more iconic disturbing scenes of minors in peril (Classic Conan).
- And then the start of the Medical Professor Murder Case.

So much content in this volume. I’m still on a Conan high and looking forward to volume 11. The beginning of each Case is starting to give me the same thrill as a scene from Final Destination, when every little action of everyone and everything in the room will lead to someone’s murder.

Continuing my journey to volume (as of writing this) 107!!

Profile Image for Johanna.
15 reviews1 follower
January 2, 2022
First book read in 2022!

I’ve been looking forward to this volume. Finally One of my all time favourite characters has entered… Hattori Heji!!! Conan’s relationship with him is gold. They make me laugh every time they are in a scene together.

Then we have the big return of our favourite dumb genius teenager…Shinichi!

The only downside to reading this was the English name…Harley Hartwell smh, I don’t know him🤔😉
This entire review has been hidden because of spoilers.
Profile Image for marcia.
1,274 reviews57 followers
January 8, 2022
The diplomat case is my favorite. I love Hattori Heiji's introduction and how the murder method isn't as complicated as it seems at first glance. I remembered being creeped out by the librarian from the second case when I was younger and the way he's drawn is honestly nightmare fuel. The case itself is nothing special but the solution is pretty neat. Other than that, I also enjoy the atmosphere of the last case.
Profile Image for Chocotube.
69 reviews
July 12, 2022
Relecture.
Un excellent tome.
La fin du meurtre de l'héritière, puis le meurtre du diplomate, avec l'introduction d'Heiji, puis le meurtre à la bibliothèque puis le meurtre en montagne.
Quatre affaires très intéressantes, l'arrivée d'un des meilleurs personnages et le retour de Shinichi pendant quelques instants. Un tome riche en émotions (surprise, joie, tristesse, peur) et en retournements de situation.
This entire review has been hidden because of spoilers.
Profile Image for Kiri.
960 reviews54 followers
December 17, 2019
In our first case, a challenger from the west arrives! I forgot about him, but I remember I used to think he was a butthole. Of I was like eight at the time. Next we have a murder in a library! What sacrilege! A library is a place of knowledge, not for shady dealings. And to close up we start a case of murder at a ski lodge. Talk about cold blooded.
Profile Image for Heba.
68 reviews6 followers
February 3, 2020
My fav volume of DC so far.. I luv when Heiji Hattori makes a special appearance out of nowhere, "he's my fav character"😍, the cases of this volume r so interesting too.. The great detectives of the east nd the west meet it this volume nd the case of the murder in the library is so breathtaking.. I just wish the situation of the file "tragedy in the blizzard" was in that volume..
Profile Image for Valerie.
185 reviews8 followers
February 17, 2022
DÉJENME DARLE MIL ESTRELLAS A ESTE VOLUMEN. Es la aparición de nada más y nada menos que nuestro detective adolescente del oese Heiji Hattori, a quien AMO. Sin duda casos sencillos pero introducción de personajes que merecen mil estrellas. Además, es la primera vez que Shinichi aparece de nuevo y sus palabras de "existe una sola verdad". Dios LO AMO.
This entire review has been hidden because of spoilers.
Profile Image for Angustia⋆Cósmica.
347 reviews14 followers
April 14, 2024
Oooh, a murder in a snowy setting? It's giving old timey Goosebumps.
As always, greed turns you into a monster. And what do people do? Hunt monster for sport.
I'm with the killer in this one, what can I say.

We also get to meet one of Shinichi's rivals, a cute guy who must speak in kansai-ben. That's already all I need to know, backstory be damned.
Profile Image for Rici.
546 reviews
April 17, 2018
Hier verwandelt sich Conan zum ersten Mal zurück in Shinichi, was cool ist! Weiterhin ist der Fall ziemlich krass, weil jemand einfach so kaltblütig vor anderen Menschen umbringen ist schon hart. Der Fall im Ski Resort scheint auch spannend zu werden.
This entire review has been hidden because of spoilers.
Profile Image for Cecillie.
1,128 reviews15 followers
November 11, 2022
I've got to admit I'm not the biggest fan of the other high school detective guy, but the trick of the case was cool. I am a fan of how creepy the library guy was, just the way his face is drawn is so unsettling. The last case I'm kind not sure about.
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