Funny, light-hearted monster stories that are perfect for young readers, brought to us by the esteemed Dr. Roach. Judd Crank and his friend Zak are two ordinary boys, in an ordinary town, with some very ordinary goldfish. Judd never thought much about his pet fish, besides sometimes needing to feed them. But when a science experiment accidentally gets mixed in with their food, these regular pets start becoming a lot more interesting. With a series of bubbles and pops, the slimy fish start growing and changing. Then they step right out of their tank -- and begin marching towards town.

Jilly can't believe what she's seeing when she wakes up one day to find all the mice in her small town of Buffalo Bottom have gone strangely still. Things only get weirder, though, when the town is suddenly visited by a flying saucer -- full of alien cats! These felines say they come in peace, to help rid Buffalo Bottom of its mouse problem. But when the town's cows start disappearing mysteriously, Jilly suspects the visitors may be up to no good.

Sammy and Tammy love the quiet Boggy Marshes full of insects and strange plants, but Maximus Sneer, an evil man with lots of money, has a secret plan to drain the Marshes and build shops and car parks. But instead of creating a shopping centre, he creates two gigantic monsters without even knowing it!

Funny, light-hearted monster stories that are perfect for young readers, brought to us by the esteemed Dr. Roach. Billy's new pet hamster is a huge disappointment. Despite his name, Hercules is perhaps the world's laziest rodent. He does nothing besides sleep, eat, and sleep some more. So when Billy sees an advertisement on television for a power snack, he decides that's just the thing to put some hurry into Hercules. But when the formula begins working too well, Billy realizes he may have one massive, hungry problem on his hands.

Judd Crank and his friend Zak are two ordinary boys, in an ordinary town, with some very ordinary goldfish. Who would have thought that these little goldfish would become great monsters and step right out of their tank and into town -- looking for trouble?