Izzy's Tail of Trouble

Isabel's dog, Rollo - 'the cutest, funniest puppy' - just doesn't seem like himself lately. Besides not fitting into her best friend Zo&«'s doll clothes anymore, he's become much harder to handle. Like when he pulls away from both girls to chase a squirrel - then keeps running! Or when he eats everyone's ice cream right off the table! Sure, Isabel bent the rules (or, um, had no rules?) for Rollo when he was a baby. But now he's a teenager - and he's out of control!! Is there a cure for this? Has Isabel created a monster?! Kids won't be able to look away!