Who said "Kronos doesn't forgive betrayal, and neither do I."?

This quote is attributed to Luke Castellan.

Kronos doesn't forgive betrayal, and neither do I. - Luke Castellan

"Kronos doesn't forgive betrayal, and neither do I."

Luke Castellan

Character in Percy Jackson: The Lightning Thief

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"Half-bloods are unpredictable. That's what makes you dangerous."

"A real friend would die for you. Would you die for them?"

"I never wanted to hurt you, but duty comes first."

"Trust is a luxury we can't afford in this world."