Greenburg, Dan

After hearing stories that a Bigfoot-like monster is haunting Camp Weno-wanna-getta-wedgee, ten-year-old Zack begins to find evidence that the legend may be true.

After falling through his computer screen, Zack travels back in time to a school in 999 A.D. where the students believe the world will end in the new millennium.

A strange trip through a metal detector causes Zack's eighty-eight year old Grandma Leah to get younger and younger.

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.

In Central Park, Zack and his dad encounter an alien who has lost his spaceship, which has been towed because it was illegally parked.

While visiting Dizzyland near Los Angeles, Klatu, Lek, and Ploo, the three alien siblings from the planet Loogl, find a fuzzy little alien named Mu in the sideshow zoo of the amusement park and decide to set it free.

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!.

Zack, his father, and Spencer fight to save the world from a rude, bossy, and hungry package of freeze-dried spores purchased at The Orville and Fanny Shlectwasser Museum of Air and Space.

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

When their spaceship crash lands on Earth, Ploo is captured by the Army and taken to the mysterious Area 51. While her brothers, Lek and Klatu, try to rescue her, Ploo uses her ESP to make a new friend.