"A shame to kill you now, before the final plan unfolds. I would love to see the terror in your eyes when you realize how I will destroy Olympus."
Chapter 1, page 23: Kronos boasts to Percy after a brief battle.

"Percy, Beckendorf chose a heroic death. You bear no blame for that. Kronos's army will be in disarray. Many were destroyed."
Chapter 2, page 39: Poseidon reassures Percy that the cruise ship mission that cost his friend his life was not in vain.

"All of you can fight this war without Ares. Until I get satisfaction, no one in my cabin is lifting a finger to help. Have fun dying."
Chapter 3, page 34: Clarisse makes a disastrous declaration to war council.

"This while thing with Beckendorf and Silena. It kinda makes you think. About...what's important. About losing people who are important."
Chapter 4, page 72: Annabeth drops Percy a hint about her feelings...