Teens age 12-17, can you solve the puzzles and plot your path through the dragon’s lair to retrieve the chest of jewels? Do so, and trade it in for your own bag of treasure. Bealeton branch library, 10877 Willow Drive North; John Marshall branch library, 4133 Rectortown Road, Marshall; Warrenton central library, 11 Winchester Street; 540.422.8500.