The book's ideas, noted as going against the official narrative, received mixed reviews, with praise for it by some commentators but also criticism for being overly speculative.

The Order of the Solar Temple was a religious group active in several French speaking countries, notoriously responsible for several mass suicides and murders in the 1990s.

[3] In writing the book, Bédat stated the intention of the authors was not to critically analyze the documents of the OTS, but instead to "start from scratch, trace all the leads and follow all the key players in this drama."

Then, two chapters describing the prior lives of Di Mambro and Jouret, before tracing the history of the group, starting with its origins and the factors that lead to the deaths.

[3][4] The book theorizes that Di Mambro and Jouret may be tied to a criminal conspiracy involving a far-right international organization, who they argue had suppressed the OTS after they began to make the news, and portrays them as having been "protected" by other forces, who had abandoned them after the fall of the USSR.

[6] It was published in Canada In January 1997 under the name L'Ordre du Temple Solaire: Enquête et révélations sur les Chevaliers de l'Apocalypse by Libre Expression [fr].

[3][5] A second book on the OTS was written by the same three authors in 2000, L'Ordre du Temple Solaire: les secrets d'une manipulation, published by Flammarion.

The review described the book as harshly criticizing the Swiss justice system and said it did not bring new information to the Valais aspect of the case.