The Last Clue

"There's only one on the list," he answers, raising his voice loud enough for her to hear over the crunch and grind of rocks beneath the tires. "It's a riddle.""Go for riddle."Dean reads slowly and deliberately so they don't miss anything important - with the way Charlie's been driving and how fast they solved the first nineteen clues, he'd hate to lose their lead over the last one."'Where sparks first lit the flame, you first spoke your name. You answered their prayer, but they're trying to kill you, under the sigil-clad frame.'""Ooh, poetic," Charlie chirps, as she swerves to avoid a very big and very annoyed raccoon."I know where this is," Dean reflects, his voice low and pensive.

Dean and Charlie are one clue away from finishing a Halloween scavenger hunt. Dean finds something unexpected in the last location.