 In 2012, Audible Studios released an unabridged audio-book recording of "Rivers of Time" narrated by James Adams.The Rivers stories take the form of first-person narratives by the protagonist told to companions whose identities vary, but who have in common the fact that their contributions to the conversation are omitted, and must be inferred from those of Rivers.Every story is an anecdote from Rivers' career as a conductor of time safaris to previous eras, both to hunt prehistoric creatures and for scientific purposes (and, occasionally, anti-scientific purposes).