When Monsters Escape (Turtleback School & Library Binding Edition) (Underworlds (PB))

FOR USE IN SCHOOLS AND LIBRARIES ONLY. Rescuing Dana from the underworld after making a dangerous pact with Hades, Owen, John and Sydney tackle a band of mythological Cyclopes who have taken over the power plant in Owen's hometown with the intention of building a monster army. By the Edgar Award-winning author of the Secrets of Droon series.