Earth's Children is a series of historical fiction novels by Jean M. Auel set in prehistoric Europe. The series follows Cro-Magnon girl Ayla who is adopted by a Neanderthal tribe but later meets and falls in love with Cro-Magnon man Jondalar. There are five novels published so far that provide detailed depictions of the interactions between Cro-Magnons and Neanderthals and focus on Ayla's journey.