Every mouse knows: beware the grill. Beyond it lie gangs of rats roaming the sewers. In the depths of this blackness, the mysterious Jupiter has his lair. But one adventurous mouse, unable to control his curiosity, squeezes past the grill – and triggers an unstoppable chain of events that demands heart-stopping courage. "Exciting... Kendall has a good range of pitch and vocal tones."—Booklist