Are you ready to start the alphabet? Let's go! Z is for Zebra.

Confused? Zebra didn't expect the alphabet to start with Z, either. Usually it starts with A is for Apple, B is for . . . something, then all the other letters, then Z. But today Apple was nowhere to be found.

Zebra isn't very happy about it. Neither is the second-to-last animal in the alphabet, Yak.

In order to figure out where their friend Apple might be, Zebra and Yak must go on a quest to discover what's gone wrong. But in an alphabet book this weird, who knows what could happen next?