Do you know who you really are? Are you sure you haven't lived another life? René Toledano, a history teacher, attends a hypnosis show during which he is selected from the audience for a hypnosis session. He then finds himself immersed in his past life and wonders if he can influence events. As his discoveries progress, he realizes that what he experienced in his previous life can affect his present one. A new and exciting challenge arises before the history teacher: can he change the course of history, rewrite it, and thus modify collective memory? Bernard Werber is a novelist and science fiction writer, author of the famous "The Ants" trilogy. He was born on September 18, 1961 in Toulouse, France, and began writing in 1990. His writing style blends several different literary genres, such as epic, science fiction, and philosophical. In most of his novels, Werber employs the same narrative structure, alternating prose with scientific language. There are also many forms of interconnection in his novels. We find the character of Edmond Wells in his famous trilogy, “The Ants,” also present in some of his other novels.