 As John's colleagues press him to explain the reason for his departure, he picks up from a reference to Magdalenian cultures by Dan and slowly, and somewhat reluctantly, reveals that he is a prehistoric caveman himself from that precise period.He states that he has lived for more than 14 millennia, and that he relocates every ten years to keep others from realizing that he does not age.He begins his tale under the guise of a possible science-fiction story, but eventually stops speaking in hypotheticals and begins answering questions from a first-person perspective.