A cerebral thriller beyond compare! This novel combines page-turning, puzzle-solving suspense, deep and varied character studies, and contemplative existential dread to extraordinary effect. Many of the questions put forth by the characters in this novel are not those that can be answered, which seems like it could be detrimental for a story of this kind. However, Le Tellier pulls it off because ultimately, the novel is about asking those unanswerable questions and learning to live with the fact that you will never know the truth. The characters are all distinct and flavorful, ensuring the book is not simply putting forth ideas in a vacuum. An engrossing book.