The House of Hades

She pressed her face into his shirt and kept her eyes closed tight. She was trembling, but not just from fear. Percy’s embrace was so warm and comforting she wanted to stay there forever, safe and protected…but that wasn’t reality. She couldn’t afford to relax. She couldn’t lean on Percy any more than she had to. He needed her, too.

Don’t look,” she told Percy.
“Wasn’t planning on it,” he said. “You can feel that, right? We’re still in the Mansion of Night. I do not want to see it.”
Smart boy, Annabeth thought. She used to tease Percy for being dumb, but in truth his instincts were usually right on target.

I’m coming back for you, Calypso,” he said to the night wind. “I swear it on the River Styx.”