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In late 2011 a cryptic invitation leads a crime novelist to Venice's Island of the Dead. Once there he is captivated by his host's tale, which spans the centuries - but seemingly begins and ends in the dark days of the 1930s . . .

In 1936, a similarly cryptic invitation brings Grail historian Otto Rahn to an apartment in Berlin. Waiting for him inside is Hitler's right-hand man, Heinrich Himmler, and Rahn's life is turned upside down.

For Himmler wants Rahn to locate Les Serpent Rouge, a notorious book of black magic written by Pope Honorius in the 14th century.

Following a trail from Paris down to Carcassone in the South of France, Rahn discovers a web of deceit and murder. Clearly Himmler is not the only powerful figure in search of the grimoire. A shadowy circle of men are watching Rahn's every move, and they will stop at nothing to possess both the book and the legendary Sixth Key that will unlock its terrifying power . . .

506 pages, Paperback

First published January 1, 2011

34 people are currently reading
319 people want to read

About the author

Adriana Koulias

15 books41 followers
Adriana Koulias is the author of three novels: Temple of the Grail, The Seal and The Sixth Key.

She was born in 1960 in Rio de Janeiro, Brazil. At the age of nine her family moved to Australia. She travelled extensively throughout her youth and was fifteen before finally settling down in a small country town outside Coffs Harbour.

She has been a nurse, a singer songwriter, a professional artist, has studied history and philosophy and began writing her first book Temple of the Grail in 1995.

Adriana now lectures regularly on History, Philosophy and Esoteric Science.

Adriana' latest book THE SIXTH KEY has been nominated for both the Davitt and Ned Kelly Awards for Crime Fiction.

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5 stars
48 (23%)
4 stars
59 (28%)
3 stars
59 (28%)
2 stars
28 (13%)
1 star
12 (5%)
Displaying 1 - 25 of 25 reviews
Profile Image for Liene.
58 reviews45 followers
June 3, 2021
I enjoy this kind of story that experience pasts mystery’s and legends. I liked the book, but something was missing and I don’t know what. The way to past and present timelines were connected kinda ruined the book for me a bit.
Profile Image for Andris.
380 reviews87 followers
January 13, 2015
Šī grāmatas anotācija mani uzķēra, pieminot Indiana Džonsu. Tā nu kopā ar lāgā zēnu Oto Rānu metāmies iekšā kārtējos Svētā Grāla meklējumos. Lai gan iesākums ar paša Hitlera parādīšanos un cilvēku slepkavošanu slepenos SS pagrabos bija diezgan daudzsološs, jo tālāk stāsts risinājās, jo latiņa krita zemāk un zemāk. Nevarētu teikt, ka grāmata bija dikti aizraujoša, ja tas skaitās Indiana Džons, tad drīzāk tāds Poškus variants. Lielāko grāmatas daļu varoņi klīst pa D-Francijas reģiona baznīciņām, intervē vecus abatus un risina “baiso” noslēpumu, pa pēdām dzenas bars ar dažādiem noslēpumainiem slepkavniekiem un citādiem dīvaiņiem, kā saka – viss žanra klasiskajās robežās.

Plašāks atskats blogā:
https://andrislasa.wordpress.com/2013...
Profile Image for Lisa.
49 reviews
November 29, 2013
Frustrated at this novel. After persevering with the slow opening half of the novel, I felt like it started to build nicely, only to find that the end was nonsensical and rediculous. I liked the historical accuracy of characters and events, which for me was the highlight. Left feeling very disappointed.
Profile Image for Jennifer Rolfe.
407 reviews9 followers
October 28, 2012
Found it hard to connect to the character in the beginning but as book unfolded ...WELL!!!
Profile Image for M. Sprouse.
709 reviews3 followers
December 11, 2020
This novel is certainly not for everyone. It has been exceedingly hard to rate and review. "The Sixth Key" shines on so many levels, the author's research and writing are top tier. She moves the story between time epochs like a sleight of hand artist. Most history fans will appreciate the blending stories. There is a fair amount of action and humor. At times it felt like Ms. Koulias was poking a little fun at her own work, which was refreshing.

This is also NOT a quick read. Even with a couple of days off, it took me a week to read. As others have mentioned, it does get bogged down. The story gets convoluted in the middle with what seems like almost the same trip to many churches. Without a map the place names and those of people begin to dull the mind. I can also see why readers may have been frustrated with the lack of a definitive ending. I often am with this kind of book. However, the author though gives clues throughout the book that there may be a whimsical, if not quaint ending. Overall an intriguing read for a select group of readers.
117 reviews
May 3, 2019
Nebija slikti, jo lasīju, negaidot nekādas lielās darbības. Noslēpums ir, meklējumi ir, briesmas ir – it kā viss žanra robežās. Kaut kā gan tomēr pietrūka. Nepatika, ka atrisinājums tomēr pārdabisks. Sižetā arī trūka skaidrības, uzsvari mainās no viena un citu, paliek šādi tādi gali, par kuriem nevar saprast, kāpēc tādi vispār bija vajadzīgi. To, kā secinājumi ik pa laikam tiek pagrābti no zila gaisa, pat sīkāk nepieminēšu. Bet lasāmais gana aizraujošs, tāpēc beigu beigās aizvilka pat līdz četrām zvaigznēm.
Profile Image for Gunita Lagzdiņa.
Author 7 books22 followers
January 12, 2019
Dena Brauna slavu pelnījusi autore (brīnos, kāpēc netiek reklamēta).
Ievilka sižetā no pirmās rindiņas un ļāva noticēt, ka tā patiešām varētu būt bijis (personāži ir reālas vēsturiskas personības).
Vienu zvaigzni atņemu par aroda māsas (korektores) ārkārtīgi švako izpildījumu – tik daudz drukas un interpunkcijas kļūdu, nekonsekvences u.c. lietas, kas liedza pilnībā izbaudīt intriģējošo vēstījumu.
Profile Image for Alma Šnipke.
2 reviews
September 3, 2017
Grāmata ar aprakstu, kas aizrauj. Bet! Sižets ļoti haotisks. Varoņu daudz par daudz. Nav iespējams izsekot visam līdzi, jūk notikumi, vārdi. Grāmata beidzas īsti nebeidzoties. Nav īsta nobeiguma. Sākums daudzsološs, bet beigās diezgan liela vilšanās.
Profile Image for Susan.
102 reviews
July 17, 2017
A good beach read which wanders between present and past. Nice plot twists though some were predictable.
88 reviews
September 26, 2017
Good read

Liked the history aspect
Liked the plot and the characters as they proceeded to go further into the book. Thank you
1 review
August 28, 2020
Boring writing style

The story is good, but I thought the style of writing was boring. I dropped the book or went to sleep after a few minutes of reading it every time.
Profile Image for Yvonne.
101 reviews10 followers
July 25, 2014
When Templars, Cathars, Nazis, Otto Rahn, and a mysterious Writer of Letters are found in one novel it's a joy to read! Especially when you see the amount of research and historical significance which went into the story. This is what grabbed my attention and kept me enjoying a tale spanning at least three time periods. Best of all, the way Adriana Koulias interwove the time periods and brought the tale to fruition is enjoyable and full of historical thrills. You will enjoy this book if you have a love of history and conspiracies.
Profile Image for Char.
113 reviews1 follower
May 29, 2013
Very interesting historical story. Learned thing about the Cather's treasure I never knew not the least how it involved Hitler and his search for ultimate power. Fast paced thriller, bit on the dark side for my taste as it was a bit scary. Is this treasure really out there hidden, protected at all costs? Who really knows, and may those who are good continue to thwart evil!
Profile Image for Beth.
64 reviews3 followers
August 16, 2014
I have been enjoying Adriana Koulias's Rosicrucian Quartet very much, and The Sixth Key is the best yet. The fact that most of her characters are historical figures makes this astounding story even more riveting. I will be starting the fourth book immediately!
Profile Image for Kristina.
Author 44 books15 followers
May 19, 2012
This book is worth reading. Adriana has researched her facts and woven an exciting story.
44 reviews
April 19, 2013
I have read a ton of books on this topic and this is definitely a new twist. I think it over does it on the details a bit though and is overly complex. I enjoyed the Indiana Jones reference.
Profile Image for Alan Marston.
184 reviews6 followers
February 9, 2015
Sorry, only managed forty pages before I became disillusioned with it. A book has to hold my attention, but this one failed to do so.
11 reviews
February 13, 2015
Could not finish this book. was too hard too follow and I had to force myself to read what I did.
Profile Image for Jennie Keech.
Author 1 book
Read
April 20, 2016
I'm so close to finishing this one, but I just can't do it. I don't care anymore. It's well written, but ... I just can't get into it enough. It's taken me weeks to get as far as I have.
Displaying 1 - 25 of 25 reviews

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