David and the Foglinian Menace

When his mother buys an antique water fountain, twelve-year-old David Gonzales is drawn into another adventure down the drainpipes. Foglinians are stealing powerful crystals from the talking rabbits of Rabbitosha and attacking the bird people of Paz. Along the way, a set of living chess pieces help him battle magical cats, giant praying mantises, and a thundering triceratops. Can David save his friends without being stranded forever in the Below Lands? [Tales of the Teleporting Topsider (Book 4)]