Creature from the Depths / Mona and the Werewolf

A) When Mona was a little girl she used to have a cute little frog, one day it got lost and so did her vampire towel. Years later, Mona and her parents have problems with their bathroom and they might have to move unless they find what's causing the problem. B) Mr. Shawbly has been acting very weird lately, Mona, Lily and Charley believe that he is a werewolf.