A former naval officer, Peter was already a published author in the rather disparate realms of Scandinavian archaeology and pen-and-paper role-playing games when he was tapped to pen the books Watchmen: The Art of the Film, Watchmen: The Official Film Companion, and 300: Rise of an Empire: The Art of the Film. His most recent movie book is Chappie: The Art of the Movie, based on the film by District 9 director Neill Blomkamp. His extensive background in Viking culture and history served him well when writing The Unofficial Magnus Chase and the Gods of Asgard Companion, due out from Ulysses Press in September, 2015. He also scripted the narration for the PSP game 300: March to Glory, and was responsible for the stories and screenplays for the games Watchmen: The End is Nigh and The Guardians of Ga’Hoole. His horror/thriller feature film (co-written with and directed by Clay Staub, produced by Scott Mednick), Devil’s Gate, is in post-production.