Warlord of Mars: Dejah Thoris - Pirate Queen of Mars #1: Volume 2

Greater and Lesser Helium are united behind Dejah Thoris. But just when things seem to be getting back to normal, Helium's precious supply of water begins running dry. Dejah heads to the Antartic ice caps to investigate, only to find herself pulled into the deadly mysteries of the forbidden south. A swashbuckling adventure of sky pirates, renegade princesses, lost treasure, and ancient curses abound in Pirate Queen of Mars!