'Ava and Angus are off to the Doolimba show, with its fun rides and lots of cute animals! But when daring twins Donna and Danny Donnelly tempt Ava to sneak into the animals' shed at night time, dozens of prize animals escape their pens! Ava and Angus's delightful trip has turned into a disaster! Will the Donnelly twins own up? Or will Ava and Angus take all the blame?' (Publication summary)