Zack's new substitute teacher seems kind of odd. And she is rather hairy. And get this, her name is Mrs. Wolfowitz! But is she really a werewolf? Or just one very weird lady who happens to like the taste of homework papers? Read on to find out!

Zack's new substitute teacher seems kind of odd. And she is rather hairy. And get this, her name is Mrs. Wolfowitz! But is she really a werewolf? Or just one very weird lady who happens to like the taste of homework papers? Read on to find out!

Mummies are cool, but they’re creepy, too! Zack has faced aliens, vampires, time-travelers, ghosts, and Bigfoot—now find out what happens when he meets teenage mummy Ikhnaton (Icky for short).

What I wanted was a cute little kitten. Instead, I got a tough tomcat that talks. And that's not all! He says he's my Great-Grandpa Julius and he needs my help. And messy litter box or not, family is family!

"My clone looks like me. My clone talks like me. He helps me with my homework and takes care of my bullies. And he could be the answer to all my problems. Or he could be my biggest one yet!

What would you do if your fortune cookie fortunes started coming true? Confucius says something very weird is going on! Could his thirteenth adventure be Zack's unlucky number?

One minute I was looking for my retainer in the bathroom. The next, I was staring at a boy who looked just like me. And I don't mean my reflection! What's going on here?