Rosie would love to have a red feather from one of the red-capped robins that live along Ghost Gum Creek, down by Nellie McGinty's place. She tells her friend Ned that they'll go there in her billy fire engine. Ned isn't so sure that's a good idea. All the kids say that Nellie McGInty is a witch, and she keeps frogs in a creepy cave by the creek, and she does her creepy spells there! Rosie convinces...