Princeless: The Pirate Princess #TPB

Adrienne has been on the run and working to save her sisters, but when she finds another princess locked away in a tower, she decides to spring her! But Raven Xingtao, the daughter of the Pirate King, is more of a handful than Adrienne could have ever expected. Before she knows it, Adrienne is off on a whirlwind adventure to complete Raven's quest for revenge!