Continuing the Barsoom saga (A Princess of Mars sequel), this book follows Tara of Helium, the daughter of John Carter and Dejah Thoris, as she is swept into a new land held by the horrific Kaldanes. Her suitor Gahan seeks to recover her but also becomes entrapped among the Kaldanes. When they finally abscond to the city of Manator, they are forced into the local version of Martian chess, which includes gladiatorial duels to the death. (From Amazon).