<P> Isabel, Zoë and Rollo are back! But, this time, Isabel’s sweet little puppy is turning into a dog she can’t recognize. So, who’s in the doghouse now? </P><P> Isabel’s dog, Rollo — “the cutest, funniest puppy” ever — just doesn’t seem like himself these days. For starters, he doesn’t fit into any of her best friend Zoë’s doll clothes anymore when they try to play baby with him. But worse, he keeps doing things that get him into a very big amount of trouble. Like, even when <I>both</I> girls are holding his leash, he manages to jerk loose to chase a squirrel — then keeps running! And, when no one’s looking, 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 <I>teenager</I>— and he’s out of control!! Is there a cure for this? </P><P> Caroline Adderson, author of the Jasper John D