Pirate Caleb Graves may be an immortal, but he's also a navigator and a man of science. And yet he can't explain the erratic tides threatening Savannah. Nor the terrible dreams of sailing through a vicious, supernatural storm that he keeps having. But when fascinating, petite dynamo Diana Williams marches up to his ship and demands to speak to the captain, Caleb is caught up in a wave of unexpected fear...and an electric frisson of longing for this...