Leo's POV

Leo Valdez made a promise to the girl on the island. The girl who stole his heart, soul, and every fiber of his being.
Calypso.
He knew when he left that finding her would be a lucky guess, that it was chancy at the best of times. But he also knows that he can't be without her. He needs Calypso, just as lungs need air and fish need water.
So Leo knows he has to get her back. Question is, how?