Hunt on Dark Waters (Crimson Sales #1) - Katee Robert

Evelyn is a witch with a perfect storm of bad impulses: terrible taste in bed partners, sticky fingers, and a lust for danger. After she steals from her vampire ex and falls through a portal to another realm, she's fished out of the waters by a band of seafarers and their telekinetic captain. She's immediately given a choice - join their group or die.