Zack bought a dinosaur egg at a flea market and it was not to go in a microwave.

For use in schools and libraries only. After Zack buys a large, green, weird-looking egg at a flea market, the housekeeper forgets his warning and microwaves it

A hypnotist's show turns out to be way more than Zack bargains for when he is pulled out of the audience, put into a trance, and his body is "taken over" by the

Zack's first trip to sleep-away camp gets a little hairy when legends of a mysterious creature lurking in the woods turn out to be more than just campfire tales

The Zack Files #28.