Future Times Three or "Le Voyageur imprudent" is a science fiction novel written by French author René Barjavel, first published in 1943. The story explores themes of time travel and its implications, focusing on a protagonist who travels back in time and inadvertently alters the course of history.

The narrative follows the journey of a man who utilizes a time machine, which allows him to travel back to significant moments in the past. However, his actions lead to unforeseen consequences, raising questions about fate, free will, and the ethical implications of altering history.