Sometimes things don't end okay.

"Monkey bars," Annabeth said. "I'm great at these." She leaped onto to the first rung and started swinging her way across. She was scared of tiny spiders, but not of plummeting to her death from a set of monkey bars. Go figure.

Don't get starry-eyed about somebody you can't have, especially if it blinds you to somebody who's really important.

They had a silent staring contest, but Percy didn’t back down. When he and Annabeth started dating, his mother had drummed it into his head: It’s good manners to walk your date to the door. If that was true, it had to be good manners to walk her to the start of her epic solo death quest.

Tyson! Thank the gods, Annabeth is hurt!" "You thank the gods that she is hurt?" he asked, puzzled.

She pulled away. “I missed you, Percy.” Percy wanted to tell her the same thing, but it seemed too small a comment. While he had been on the Roman side, he’d kept himself alive almost solely by thinking of Annabeth. I missed you didn’t really cover that.

And togheter, holding hands, he and Annabeth fell into the endless darkness