Geronimo and Thea search for Pirate Treasure and ghosts on a desert island.

Geronimo goes to his nephews career day at school and causes a volcano to expolde, gets stuck in the tunnel on the playground and lets thee classes pet gecko out of its cage.

Is there a ghost haunting New Mouse City's subway tunnels? Geronimo is terrified to find out but he must get the scoop for The Rodent's Gazette. Then he finds out the ghost turns out to be something even scarier!

When Geronimo goes on vacation, all the good hotels are booked and he's stuck in a flea-ridden old hotel sharing a room with a bunch of Gerbil Scouts.

Thea, Trap, Benjamin and Geronimo are on the trail of the Ruby of Fire in the Amazon. But their quest soon turns into a race against time. Some pretty nasty rodents are also after the ruby.