The Last Olympian - Builders

He chewed on a tin can as we stared across the pond at the line of new cabins under construction. The U-shape would soon be a complete rectangle, and the demigods had really taken to the new task with gusto.

Nico had some undead builders working on the Hades cabin. Even though he was still the only kid in it, it was going to look pretty cool: solid obsidian walls with a skull over the door and torches that burned with green fire twenty-four hours a day. Next to that were the cabins of Iris, Nemesis, Hecate, and several others I didn’t recognize. They kept adding new ones to the blueprints every day. It was going so well, Annabeth and Chiron were talking about adding an entirely new wing of cabins just so they could have enough room.


- The Last Olympian, Chapter 23