User blog comment:PercyJacksonfan12/Titans and Camp Jupiter/@comment-4627074-20111216044035

Depends on which quest youre talking about, because by the time of The Last Olympian the Labyrinth was already destroyed, but yeah it is implyed that at least Jason fought the titans, as said in this quote from The Lost Hero: "I'm the son of Jupiter! I'm a child of Rome, consul to demigods, praetor of the First Legion. I slew the Trojan sea monster. I toppled the black throne of Kronos, and destroyed the Titan Krios with my own hands. And now, I'm going to destroy you, Porphyrion, and feed you to your own wolves" So probably Jason lead a raid to Mt. Saint Helens, defeated Krios and toppled Krono's trone...yeah the Romans fought the Titans.