The Chessmen of Mars

The daughter of Earthman John Carter and Martian Princess Dejah Thoris, Tara, Princess of Helium, was raised to be strong and independent. When Prince Gahan of Gathol seeks her hand in marriage, Tara is unimpressed by his dandyish ways. But while out flying in a storm, she finds herself stranded in an unfamiliar region of Barsoom, and she is captured by the Kaldanes, a strange species of aliens with gigantic heads and tiny, crablike legs.