Publisher Blurb: Explore Barsoom during the early days of John Carter’s arrival, his life among the Tharks, and his early exploits before all Barsoom knew of his legend. Focused on the characters, places, and important events of A Princess of Mars and the status quo on Barsoom at the time of Carter’s arrival, this sourcebook also provides expanded discussion and character background options for playing Earthborn and Green Martian characters. Includes advice on running both canonical and alternate versions of the Carter stories set during this period, using Burroughs’ work itself as a roadmap for designing and playing your own adventures.