Rick Riordan
Percy Jackson and the Olympians
19
19
He shook his head sadly. "The poison used on Thalia's pine is something from the
Underworld, Percy. Some venom even I have never seen. It must have come from a monster quite
deep in the pits of Tartarus."
"Then we know who's responsible. Kro—"
"Do not invoke the titan lord's name, Perc