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.

When Zack uses a magic box from Tibet to produce a duplicate of himself, he finds that he has created more problems than he has solved.

When Zack accidentally drinks the invisible ink that is one of Spencer's experiments, he worries about missing his only chance to get his picture in the paper, if the new flavor he and Spencer invented wins the local Len and Larry's Ice Cream contest.

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

Klatu, Lek, and Ploo head back to Groom Lake to fix their busted spaceship. But the spaceship is gone—it's been taken to Area 51. There's nothing for the aliens to do other than sneak in and search for it. Instead they find something they weren't looking for—the Great Ones! The mythic missing Looglians Org, Murkel, Shemp, and Kurth crashed at Roswell New Mexico in 1947, and have been in the deep freeze ever since. Can our three wacky alien...

When Zack is given the chance to swim with dolphins on a trip to Florida, he dives right in. But before long, Zack is surprised to find that the dolphins are trying to tell him something ? and even more surprised that he can understand and talk to them! There's definitely something fishy going on here! Could it be genuine animal communication? And can Zack and his new friends get their signals straight and salvage an old sunken ship filled with treasure?...

Ten-year-old orphan twins Wally and Cheyenne Shluffmuffin have a had it bad 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.

The ten-year-old Shluffmuffins twins, still evading the evil, giant ants that tried to adopt them, discover the culinary delights of swamps and encounter a zombie who bears a strange resemblance to their deceased father.

Followed by an assassin and her poisonous snakes, ten-year-old twins Wally and Cheyenne Shluffmuffin try to get from their Ohio home to the FBI training facility in Quantico, Virginia, to get help in freeing human hostages from the onts.