The Sea Witch (Salt & Sorcery, #1)

"Condemned as a witch, sentenced to die, Alys Tanner uses her innate magical power to flee Puritanical New England. Stealing a ship, Alys becomes captain of The Sea Witch, leading its all-female, sorcery-wielding pirate crew. But the colonial British navy is in hot pursuit. The navy fights for a choke hold on the Caribbean and will destroy anything they cannot control, especially witches. When Ben Priestley, a headstrong naval navigator, is inadvertently captured by the lady pirates, dangerous truths are revealed. A quest that could turn the tides against the navy's might ignites a reluctant partnership between the by-the-books prisoner and the fierce witch pirate captain. While they brave backstabbing pirates, perilous tropical islands and monster-filled seas, Alys and Ben's mistrust grows into unexpected desire as they battle an enemy that will stop at nothing to rule the waves"--