The Very Worst Thing

He isn't good at school, or talking to people, or making friends. He's been in six different foster homes, and he can't really remember his parents. It seems like he'll never have anything all his own.

Then he finds an owl egg. With the help of Mab, the skinny "girl genius" of his class, he names it King Arthur and sets out to hatch and raise an owl of his very own. As they wait for King Arthur to hatch and as they raise the funny-looking owl chick, Mab and David become true friends.

But Mab's father thinks they should return King Arthur to the wild. Can David give up his owl? Is it even the right thing to do? What can David do if the worst thing of all happens?