Seven Lives of Leo Bellamy

Leo Bellamy is a seventeen-year-old music lover and movie buff, an ordinary guy from an unremarkable French town. The girl he liked chose someone else, and his only prospect is a school party dedicated to the end of the year, which will take place in seven days. But due to some strange glitch in the space-time continuum, over the week, Leo lives seven lives, each time waking up in the body of a new person thirty years ago. The teenager does not understand why this is happening to him, but he quickly begins to suspect why. Perhaps it is up to him, a boy from the future, to prevent the death of Jessica Stein, a beautiful and popular schoolgirl, who was killed in 1988 at exactly the same party. But what if Leo fails and dies before he can return to his present?
An incredible journey through time and space in a novel that is simply impossible to put down. The very butterfly effect, where a minor change in one place can lead to staggering changes in another.