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Infinity Ring #6
Behind Enemy Lines
Fix the past. Save the future.
Dak, Sera, and Riq involve themselves in one of the most bizarre spy missions in history . . . and the outcome of World War II hangs in the balance.
Dak, Sera, and Riq involve themselves in one of the most bizarre spy missions in history . . . and the outcome of World War II hangs in the balance.
192 pages, Hardcover
First published September 1, 2013
53 people are currently reading
1917 people want to read
About the author
Jennifer A. Nielsen
52 books9,492 followersJennifer lives at the base of a very tall mountain in Northern Utah with her husband, three children, and a naughty puppy. She loves the smell of rainy days, hot chocolate, and old books, preferably all at once. She is a former speech teacher, theater director, and enjoyed a brief but disastrous career as a door-to-door pollster. In her spare time, Jennifer tends to panic, wondering what she has forgotten to do that has allowed her any spare time.
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Displaying 1 - 30 of 71 reviews
January 15, 2014
Thank you to netgalley.com and Scholastic for allowing me access to this title.
***Vague spoilers***
I have really been enjoying this series. They picked some really great authors. This section of the series written by one of my favorite authors Jennifer A Nielsen.
While the writing was great and the story really fun. I feel like I was cheated out of an adventure. At the end of book five they land in a very suspenseful situation, but at the beginning of this book they bounce into a completely different era. I had to find book five again and check to make sure I read them in order. Where is the resolution from book 5?
Alone this book is 4 or 4 1/2 stars, but as a continuation of a series it skipped a whole adventure. Therefore only 3 1/2 stars.
***Vague spoilers***
I have really been enjoying this series. They picked some really great authors. This section of the series written by one of my favorite authors Jennifer A Nielsen.
While the writing was great and the story really fun. I feel like I was cheated out of an adventure. At the end of book five they land in a very suspenseful situation, but at the beginning of this book they bounce into a completely different era. I had to find book five again and check to make sure I read them in order. Where is the resolution from book 5?
Alone this book is 4 or 4 1/2 stars, but as a continuation of a series it skipped a whole adventure. Therefore only 3 1/2 stars.
May 24, 2017
This book is about three kids who jump through time to change certain events to stop an evil organization known as the SQ. Sera, Dak and Riq have time-warped by using the Infinity Ring from Baghdad to 1943 Scotland. They go there because they realize they are to witness World War II as the means to correct a break in the past. But before they can set up a plan, Nazi planes begin a blitz. A cadet who says that he’s their contact rushes them into an air-raid shelter. He is eventually killed trying to help people in the street. This meant that the three were all on their own. They decide to spy on Nazi and allied troops. The kids found themselves behind enemy lines. Dak was in Germany trying to find clues for their mission. Riq was spying in British headquarters. Sera was in Spain investigating a fake death planned to confuse the Nazi armies.
I would recommend this book because it was a fast paced thriller. With each new scene, it made you want to flip through all the pages as fast as you could to know what happened next. For example, I thought something really bad was going to happen during the bombing which made me flip through the pages really fast. The author, Jennifer A. Nielsen, has created an amazing, interesting book. I really like how she used actual historical events like locations and times of World War II bombings, rationing, Nazi war criminals and the Allies’ bad plan to attack Greece to confuse the enemy. I rate this book a 4 out of 5 stars because of fast paced thrill of this book and the author did an amazing job. I didn’t like how the cadet died so early on in the book, we never see new character and it would of been nice to see one. But overall this was an amazing book.
I would recommend this book because it was a fast paced thriller. With each new scene, it made you want to flip through all the pages as fast as you could to know what happened next. For example, I thought something really bad was going to happen during the bombing which made me flip through the pages really fast. The author, Jennifer A. Nielsen, has created an amazing, interesting book. I really like how she used actual historical events like locations and times of World War II bombings, rationing, Nazi war criminals and the Allies’ bad plan to attack Greece to confuse the enemy. I rate this book a 4 out of 5 stars because of fast paced thrill of this book and the author did an amazing job. I didn’t like how the cadet died so early on in the book, we never see new character and it would of been nice to see one. But overall this was an amazing book.
April 4, 2017
I loved going to Aberdeen, then to London walking the halls of the Admiralty. On to Spain to shore up a British intelligence plot. And finally to Hitler's bunker, each step a thrill ride in itself! Don't miss this great adventure in time travel.
May 2, 2019
I loved reading about one of my favorite acts of sabotage, also featured in my nonfiction book, FAMOUS PHONIES! (But you'll have to read these books to figure out what it is, bwahahahahaha!)
May 11, 2015
In Behind Enemy Lines Dak, Sera and Riq are in 1943 in Europe during the Second World War. They split up to accomplish their next mission to help the Allies take over Sicily. Tilda, the head of SQ, has managed to hitch a ride with them to1943. She is determined to make trouble. Dak, Sera, and Riq manage to succeed for the moment, but what does Tilda have in store for the future now that she has an eternity ring?
I loved this book and I rate it five stars. The howl Infinity Ring series is not just about futuristic time travel, it actually teaches you about history in a fun way that makes kids like me love them. I would recommend this book to science fiction readers. I hope you love Behind Enemy Lines.
I loved this book and I rate it five stars. The howl Infinity Ring series is not just about futuristic time travel, it actually teaches you about history in a fun way that makes kids like me love them. I would recommend this book to science fiction readers. I hope you love Behind Enemy Lines.
January 9, 2014
Set in Europe during WWII, in this installment, Riq, Daq & Sera are tasked with making sure the Mincemeat Man subterfuge is swallowed by the Nazis. They also have to deal with Tilda and geta new SQuare so they can continue their quest to fix the breaks in history.
September 22, 2016
This is another great adventure! My kids and I were pretty nervous when Hitler made an appearance. I actually learned a few factual things about World War II that I didn't know before.
January 23, 2020
The title of the book is Infinity Ring: Behind Enemy Lines and is written by Jennifer A Neilsen. Jennifer is an American author who is from Utah and writes fiction for young adults and is known for creating a book series called "Ascendance Trilogy". The author contributed to the book by trying to create another series to it. The theme of this book is don't be at the wrong place at the wrong time.
The story is about these three kids and they go back in time into World War 2 in 1943. As they are there they realized that the time traveling device is broken so they are going to have to stay there for a little while. They explore their surroundings to find out where they are and they are in Aberdeen, Scotland. As they realized where they are at they hear the terrifying sounds of airplanes dropping bombs above them. Then they now realized they are in the middle of World War 2 and try to go find cover. As they try to survive they meet up with a soldier who recognized them because he is also a time traveler like them. The soldier does his part until the three are alone again and decide they want to do a spy mission to go behind enemy lines to get what they want and to also help the allies. My favorite part was when they had to split up for the mission because it gives them the opportunity to be
Independent and have a role. My least favorite part was when the "Villain" shows up because it messes up certain things for the three kids.
The main characters are Riq, Dak, and Sera and they are believable because they are doing their part in helping the allies in the war. My favorite character I'd say would have to be Sera because during the spy mission there was a certain thing that had to be done which was to actually go undercover which is really dangerous but one of them had to do it because it took two people to do the other thing that was part of the mission. I can't really relate to any of the characters experiences because I never went undercover or went on a mission unless it was in a video game.
I really did like the book because it was interesting and it kept me entertained as I read it. I also like it because it's mixed with fiction and nonfiction. The fiction being that three kids help the allies in the war and the interesting nonfiction being that its about World War 2. But overall it is really good and if I have the opportunity to read the series, I really would. I would recommend this to someone who is into history and that likes fiction because I'm pretty sure that they would enjoy is as much as I did.
The story is about these three kids and they go back in time into World War 2 in 1943. As they are there they realized that the time traveling device is broken so they are going to have to stay there for a little while. They explore their surroundings to find out where they are and they are in Aberdeen, Scotland. As they realized where they are at they hear the terrifying sounds of airplanes dropping bombs above them. Then they now realized they are in the middle of World War 2 and try to go find cover. As they try to survive they meet up with a soldier who recognized them because he is also a time traveler like them. The soldier does his part until the three are alone again and decide they want to do a spy mission to go behind enemy lines to get what they want and to also help the allies. My favorite part was when they had to split up for the mission because it gives them the opportunity to be
Independent and have a role. My least favorite part was when the "Villain" shows up because it messes up certain things for the three kids.
The main characters are Riq, Dak, and Sera and they are believable because they are doing their part in helping the allies in the war. My favorite character I'd say would have to be Sera because during the spy mission there was a certain thing that had to be done which was to actually go undercover which is really dangerous but one of them had to do it because it took two people to do the other thing that was part of the mission. I can't really relate to any of the characters experiences because I never went undercover or went on a mission unless it was in a video game.
I really did like the book because it was interesting and it kept me entertained as I read it. I also like it because it's mixed with fiction and nonfiction. The fiction being that three kids help the allies in the war and the interesting nonfiction being that its about World War 2. But overall it is really good and if I have the opportunity to read the series, I really would. I would recommend this to someone who is into history and that likes fiction because I'm pretty sure that they would enjoy is as much as I did.
March 30, 2024
**3.75**
We ended the last book with an epilogue of them going to the lewis and clark expedition. And the little brochure inside the book talked about that. Is that only on the game? Like a teaser? That sucks
This book definitely had a better plot with tilda, but other parts were still hard to follow. I still with we get more about dak’s parents or them trying to figure out where they are. Maybe they’re causing all the issues that need to be fixed!
- What happened to Lewis and Clark?
- In the 19 th century? During ww2. Wouldn’t that be 20th century?
- Are they in Scotland??
- Person they just met died in an explosion
- Left tiq to make a cover story. Dak and sera jump a week ahead
- Go to dak’s house. Sera meets someone who pretends to help them
- Sera’s parents are sq!??
- Used ring to escape. Sq came with
- Clive comes in navajo
- Meet anton, sq, tell him about the destroyed future
- Need to convince someone of accepting a fake cause of death
- Keeping the ring away from lady from future
- Sera have tilda a box of rocks i stead of the ring
- Go to get the ring and thinks someone may have opened the locker. Possibly used it
- Find hitler
- On a train without boarding passes. Avoid the conductor
- Tilda was prepped for dak and sera. She has been told about time travel from an ancestor
- Tilda took the ring back to the future to have it replicated: the eternity ring
- The rings run on fuel. Hopefully tilda runs out
- Tilda is disoriented after time travel. A couple help her… dak’s parents!
We ended the last book with an epilogue of them going to the lewis and clark expedition. And the little brochure inside the book talked about that. Is that only on the game? Like a teaser? That sucks
This book definitely had a better plot with tilda, but other parts were still hard to follow. I still with we get more about dak’s parents or them trying to figure out where they are. Maybe they’re causing all the issues that need to be fixed!
- What happened to Lewis and Clark?
- In the 19 th century? During ww2. Wouldn’t that be 20th century?
- Are they in Scotland??
- Person they just met died in an explosion
- Left tiq to make a cover story. Dak and sera jump a week ahead
- Go to dak’s house. Sera meets someone who pretends to help them
- Sera’s parents are sq!??
- Used ring to escape. Sq came with
- Clive comes in navajo
- Meet anton, sq, tell him about the destroyed future
- Need to convince someone of accepting a fake cause of death
- Keeping the ring away from lady from future
- Sera have tilda a box of rocks i stead of the ring
- Go to get the ring and thinks someone may have opened the locker. Possibly used it
- Find hitler
- On a train without boarding passes. Avoid the conductor
- Tilda was prepped for dak and sera. She has been told about time travel from an ancestor
- Tilda took the ring back to the future to have it replicated: the eternity ring
- The rings run on fuel. Hopefully tilda runs out
- Tilda is disoriented after time travel. A couple help her… dak’s parents!
This entire review has been hidden because of spoilers.
May 28, 2018
I picked this book because I enjoy reading WWII stories, and this one, unlike the story of Columbus in Book 1, was one that I knew absolutely nothing about. I had to research it a bit afterwards to find out which parts were factual (turns out the main spy plot and some of the people actually existed). I have been bouncing around this series, picking the eras most interesting to me and avoiding the ancient eras, but tonight I realized that this is not a never-ending series but one with only 8 books, 3 of which I've read. That's definitely do-able, even if it means reading some ancient history. Maybe Dak, Sera, and Riq can liven it up a bit!
January 27, 2019
This book's main characters are Dak, Sera, and Riq. They are sent back to fix whatever history has been altered by the evil SQ. They are sent back to the time period of World War II to fix what SQ has done. Dak’s part of the mission finds him at Hitler’s headquarters, where his fear of being caught is too much for him,and Hitler says he can start training to be a German Soldier. The officer said no and that Dak is his servant.
June 10, 2018
I wavered between 3 and 4 stars on this one. I finally went with 3, because there are several of these that I have enjoyed more that got 4 stars. As always, my favorite part is learning more about history. I love the way the authors weave in fact along with the way history was "broken". It will be good in the next book to see how they fix the original break.
July 29, 2023
Nielsen wrote a decent edition to this series. but still not redeeming. I love WWII history, and have never heard of this part of it. I need to look it up. It ended up on a bit of a cliff hanger, which makes me just interested enough to give the last two a quick listen. I've been listening them on 1.75 speed.
April 15, 2024
Probably my favorite of the series, along with book 1 by James Patterson. Jennifer Nielsen does extensive research and it is clear in all of her historical fiction including this book that's part of a larger series. I was digging for more information about Operation Mincemeat, something I had never heard of in World War II stories.
August 22, 2019
I really enjoyed this one in the series. I know enough about World War II to understand the names, dates, and underlying problems. Yet, this story focused on an aspect of the war I'd never heard of before, the Mincemeat Operation. It was fun to learn about it.
September 19, 2025
*I haven't been reading this series, but I am reading all Jennifer Nielsen's books. I didn't have any trouble picking up the plotline despite missing the books before it
This was fine, but not my favorite. I was mostly just annoyed with the kids and the decisions they were making.
This was fine, but not my favorite. I was mostly just annoyed with the kids and the decisions they were making.
December 20, 2017
I’m glad I found these books. Very fun.
September 7, 2018
Takes place during world war 2. Fun story. Quick kids read.
October 1, 2018
It's a good book to read! It has lots of suppence
December 20, 2018
I really enjoyed this one - lots of twists and turns
February 3, 2019
this is the series' peak, it's best to just stop here
July 29, 2019
Good book. I love how you don't have to worry about the content.
August 23, 2020
This book was full of adventure...It is interesting to think of how it would be to be in the presence of such history. Thank you for bringing it alive.
October 8, 2019
I loved this book! I REALLY REALLY REALLY can't wait until book #7 comes into our middle school library! I come to our library every day to see if it's in there. I liked how Sera and Dak finally traveled forward in time and when got back to world war 2, Tilda, the leader of the SQ accidently came back with them! Also how Tilda built an ETERNITY RING! Very interesting book.
January 7, 2015
Source: Netgalley
I did read these books out of order, but hopefully that will not have much bearing on the review. I have missed Dak, Sera and Riq and I am glad to be getting back to them again. And this one is written by one of my new favorite authors, so that makes it even better and I had very high hopes coming into this book.
I admit that the landing on an awning thing at the beginning made me laugh. Riq seems to be the butt of the joke fairly frequently.
And then, oh my, Riq has a secret that he is keeping and it could change so much..... The intrigue of it all. And don't worry, I am really not giving anything away that you wouldn't know if you had read the previous books, so I am still spoiler free!
I dislike everything about Tilda, and the antics of the last couple chapters do not endear me to her at all in any way. She is a snake that should perish and perish quickly. Please tell me she is.. Handled in later books? And the crap she spews on about about Sera's parents? What is that?
The book progressed so quickly that I forgot to take notes as I went along, so bear with me here a little as I ramble about and gush over the story. The action sequences took off and stayed fast paced throughout the entire book. This keeps the reader coming back for more again and again, every time.
This installment, and really this whole series, is well suited for every middle grade reader, boy and girl alike, as it has just a little bit of everything within the pages.
I think my favorite part is the historical facts. I love that history is the forefront of the series. Especially the fact that this book tells so much about World War II. World War II holds a special place in my heart. My grandfather was in the US Army during the war, and this was one of my favorite bits of history to learn when I was in school.
Overall, a very good read and I can't wait to see what happens next to our young heroes.
I did read these books out of order, but hopefully that will not have much bearing on the review. I have missed Dak, Sera and Riq and I am glad to be getting back to them again. And this one is written by one of my new favorite authors, so that makes it even better and I had very high hopes coming into this book.
I admit that the landing on an awning thing at the beginning made me laugh. Riq seems to be the butt of the joke fairly frequently.
And then, oh my, Riq has a secret that he is keeping and it could change so much..... The intrigue of it all. And don't worry, I am really not giving anything away that you wouldn't know if you had read the previous books, so I am still spoiler free!
I dislike everything about Tilda, and the antics of the last couple chapters do not endear me to her at all in any way. She is a snake that should perish and perish quickly. Please tell me she is.. Handled in later books? And the crap she spews on about about Sera's parents? What is that?
The book progressed so quickly that I forgot to take notes as I went along, so bear with me here a little as I ramble about and gush over the story. The action sequences took off and stayed fast paced throughout the entire book. This keeps the reader coming back for more again and again, every time.
This installment, and really this whole series, is well suited for every middle grade reader, boy and girl alike, as it has just a little bit of everything within the pages.
I think my favorite part is the historical facts. I love that history is the forefront of the series. Especially the fact that this book tells so much about World War II. World War II holds a special place in my heart. My grandfather was in the US Army during the war, and this was one of my favorite bits of history to learn when I was in school.
Overall, a very good read and I can't wait to see what happens next to our young heroes.
February 21, 2017
Wow. Never thought this series would be able to pull anything out again above a one star book. But this one did a couple of good things. It at least attempted to wrap up the history with a "this is how it should be." And the Von Roenne story line was thoughtful without seeming preachy, like much of the series has felt.
Not perfect, but a definite improvement.
Not perfect, but a definite improvement.
February 2, 2014
We are back to things not making sense. If the SQ was able to make rings in the future, they could just do whatever they wanted and wouldn't need to worry about Daq and the rest in Germany. They could just go do whatever they wanted and re-fix everything however they wanted. It doesn't make sense that they would just make 1 ring and then go back to Germany. Also a lot of things were quite convenient in this one. Sera just happened to leave the ring in a locker for a long time (the only time they've really parted with the ring voluntarily), they happen to meet the Hystorian as the first person they encounter, etc... Also, if the Hystorians were deciding where to send them, why send them in the exact time and place of a bombing - couldn't they just send them 1 day earlier or a mile out of town so they weren't in immediate danger? I get that it's a kids story, but they still need to make it make sense. These are all problems I would have seen as a kid reading it too. It also doesn't make sense that things would be "worse" when they travel to the future. If their mission is fixing things, why is the future getting worse? Hopefully they will try to explain that in the last book, but it's hard for me to buy at this point.
This entire review has been hidden because of spoilers.
Displaying 1 - 30 of 71 reviews