ONE I GO CRUISING WITH EXPLOSIVES The end of the world started when a pegasus landed on the hood of my car. Up until then, I was having a great afternoon. Technically I wasn't supposed to be driving because I wouldn't turn sixteen for another week, but my mom and my stepdad, Paul, took my friend Rachel and me to this private stretch of beach on the South Shore, and Paul let us borrow his Prius for a short spin. Now, I know you're thinking, Wow, that was really irresponsible of him, blah, blah, blah, but Paul knows me pretty well. He's seen me slice up demons and leap out of exploding school buildings, so he probably figured taking a car a few hundred yards wasn't exactly the most dangerous thing I'd ever done. Anyway, Rachel and I were driving along. It was a hot August day. Rachel's red hair was pulled back in a ponytail and she wore a white blouse over her swimsuit. I'd never seen her in anything but ratty T-shirts and paint-splattered jeans before, and she looked like a million golden drachmas. "Oh, pull up right there!" she told me. We parked on a ridge overlooking the Atlantic. The sea is always one of my favorite places, but today it was especially nice—glittery green and smooth as glass, as though