Dejah Thoris and the Green Men of Mars (Dejah Thoris and the Green Men of Mars #2)

Things go from bad to dark, hopeless and stomach-churningly gruesome for the Princess of Helium. She's been kidnapped by rogue Thark, Voro, a black marketeer for green men with a certain forbidden taste. When she's locked in a dungeon with other doomed red-skinned women, Dejah Thoris is in for a fate that really is worse than just death. Voro's keeping the women alive and performing one amputation after another on them. Nothing but the freshest red meat for his customers.