It's a stifling hot summer in the Underworld city of Duplicity, and the Nightmares are ready for an island getaway. There's only one snag, however, and it might unravel their plans for fun in the sun.

It's a stifling hot summer, and the Nightmares of the Underworld are ready for a getaway. Gremlin, the leader of Bobby's Nightmares, reluctantly agrees and the whole town of Duplicity follows suit. There's only one snag, however, and it might unravel their plans for an island adventure.—Sally Basler