The Sea Witch and the Mage (Sirens Series Book 1)

Sea witch Athenia must avenge the death of her twin to save herself from the same fate. Though enslaving a human mage and siphoning his power will result in the mage's death, she believes it is her only choice. But she can't handle his powers. The wizard she is trying to stop overpowers her instead. And only the mage can save her. If he will...