How do you outwit a Twit?

Mr. and Mrs. Twit are the smelliest, ugliest people in the world. They hate everything-except playing mean jokes on each other, catching innocent birds to put in their Bird Pies, and making their caged monkeys, the Muggle-Wumps, stand on their heads all day.

But the Muggle-Wumps have had enough. They don't just want out, they want revenge.

Puffin Books, 2011.
ISBN: 9780141326207. 86 pp.
Softcover. Fine.