When Luke had descended into the River Styx, he would've had to focus on something important that would hold him to his mortal life. Otherwise he would've dissolved. I had seen Annabeth, and I had a feeling he had too. He had pictured that scene Hestia showed meโof himself in the good old days with Thalia and Annabeth, when he promised they would be a family. Hurting Annabeth in battle had shocked him into remembering that promise. It had allowed his mortal conscience to take over again, and defeat Kronos. His weak spotโhis Achilles heelโhad saved us all
Rick RiordanMy name is Percy Jackson. I'm twelve years old. Until a few months ago, I was a boarding student at Yancy Academy, a private school for troubled kids in upstate New York. Am I a troubled kid? Yeah. You could say that.
Rick RiordanThrowing down your staff may sound like a sign of surrender, but in Egyptian magic, it's bad news. It usually means, 'Hey, I'm going to summon a big nasty thing to kill you while I stand safely inside my circle and laugh'.
Rick Riordan