Here is an original book that reads without even realizing it! Very scripted, the story is removed, rich and enjoyable to read, you take pleasure mingled with chills with the characters discover the mysteries of the building kavach and solve the puzzles that are piling up. Many references and little winks that speak to us and we anchored with the characters. Intriguing, sometimes even a little scary, this book begins as a thriller but requires to keep an open mind because evolution is not necessarily very Cartesian ... I do not want too much away, but the 4th cover references to Lost, the 4th dimension Lovecraft and you will surely put a flea in the ear ;-) Anyway a book I urge all those who want to take leave in an unusual and well-written plot, the film is set in As playback. A great moment of escape mixing different genres, which I hope you will enjoy too! Happy reading :)