Shh, silence… they’re right behind you, although you can’t see them. They’re mooonsters, and they’re coming to eat you! Who invited them to dig their teeth in? Well Invi, of course, who stepped on a crack three times, and you know what happens to a kid who does that: he opens the gateway to the terrible and hidden world of fear, letting out all the monsters that live under the bed, creepy-crawlies that hide in sandwiches, phantasmagorical creatures that are completely out of your control… The twins have to find a way to send them back to where they came from. But where? On the Internet, of course. But bad ole’ Evilina has signed a secret pact with the monsters behind Zip and Zap’s backs. Will they be able to stop the monsters before it’s too late?
