Little Bibole knows everything about his friends. That's what he thinks, anyway-until one stormy night at the height of a full moon. His mother, like all of his friends' mothers, warned him every month to be sure to be home early when the moon was full. Bibole's mother had told him there were monsters in the forest, but he never thought he'd see one ... and he definitely didn't think it would be someone he knew!On this stormy, moonlit night, however, Bibole would learn more about his little friend, about the forest he called home, and even about his own mother and father than he ever imagined as the three of them-Bibole, Rivol, and Michelle-set out on an adventure to return the big weremouse safely home.