Dan Greenburg

Zack visits a very strange Chinese restaurant called Wun Dum Guy and finds that the fortunes in his fortune cookies start coming true.

There's something weird about Zack's new friend Icky. It's not just the bandages or the Egyptian writing--but it might have something to do with being 3,000 years old!

While on a class picnic in Central Park, ten-year-old Zack gets a chance to study ants close up and personal when he uses way too much of a classmate's diet powder and shrinks to their size.

While Zack is being treated by Dr. Jekyll, his new orthodontist, the doctor undergoes a strange transformation into a growling monster.

"Stop the clock! Someone has frozen time in order to steal four of the world's most valuable treasures. And the thief is wearing a black mask like Maximum Boy, a silver cape like Maximum Boy, and a hat with [his] logo on it..

Although a paid assassin is stalking Wally while his twin sister Cheyenne is under the power of the queen ont, it is up to them, their vampire Dad, and their friends to save the human race from the giant onts.

After she eats his homework, ten-year-old Zack suspects that his substitute teacher Mrs. Wolfowitz is a werewolf and uncovers her bizarre secret.

Ten-year-old orphan twins Wally and Cheyenne Shluffmuffins have a hard time at Cincinnati's Jolly Days orphanage, but things get much worse when the Mandible sisters offer to share their home in the Dripping Fang Forest.

After an electrifying experiment in science class gives Zack a shock, he realizes that he can read other people's minds.

Ten-and-a-half-year-old Zack finds out how spooky the natural history museum really is when he gets trapped there at night.