In this book, the twits, the twits are nasty old people who live in a house with no windows, a dead tree in there front yard, and a garden with spikey thorn bushes, in this book the twits play nasty pranks on each other, end up buying guns, treat monkeys horribly, and even go upside down.
In the book the Twits two wicked people always play tricks on each other. They only cooperate on one thing, they love bird pie. So they catch some birds, puts them into pie and eats them. The upside down monkeys help the birds avoid the evil pair and get some revenge on them!