"What was I thinking?" Chiron cried. " I can't let you get away without this." He pulled a pen from his coat pocket. It was an ordinary disposable ballpoint, black ink, removable cap. Probably thirty cents. Gee," I said. "Thanks." Percy, that's a gift from your father. I've kept it for years, not knowing you were who I was waiting for. But the profecy is clear to me now. You are the one. I remembered the feild trip to the Metropolitan Museum of Art, when I'd vaporized Mrs. Dodds. Chiron had thrown me a pen that turned into a sword. Could this be...? I took off the cap, and the pen grew longer and heavier in my hand. In half a second, I held a shimmering bronze sword with a double-edged blade, a leather=wrapped grip, and a flat hilt riveted with gold studs. It was the first weapon that actually felt balanced in my hands. The sword has a long and tragic history that we need not go into," Chiron told me. "It's name is Anaklusmos."