Creepella opens Mouse Island's first dating agency and hires Geronimo as her assistant, but someone is trying to sabotage their business.

Despite Bear's efforts to ignore his birthday, Mouse will not rest until his friend celebrates.

"I, Geronimo Stilton, was off to the wildest part of Brazil - the Amazon jungle! I ended up on a hunt for a rare crystal treasure, which was stolen from a native tribe in the heart of the forest. I'd encounter alligators, snakes, piranhas, and other dangers on my way. Holey cheese! What an adventure!" -- Back cover.

When Pip goes to Posy's house to play, they are having such a good time that Pip forgets something very important.

While attending the Cuckoo Clock Carnival in Germany, the Thea sisters investigate the theft of a famous clock.

The cat can't meow, the dog can't bark, and even the mouse can't squeak. When they go to the little old lady in the woods for a spell to restore their voices, things don't go as expected.

Creepella's father, Boris von Cacklefur, is a finalist in the Fright Night poetry competition, but when Boris suddenly vanishes during the contest, it is up to Creepella and her friends to investigate.

Angelina goes to the most famous city in Mouseland to perform at the Big Cheese Dance Show with her cousin Jeanie, but the two clash over whether tap or ballet is better.

In Milan to attend the unveiling of a parchment that contains the original recipe for a traditional holiday bread, Geronimo Stilton is shocked when a thief posing as him steals the recipe, forcing him to catch the culprit and clear his name.

When a pirate gets shipwrecked on Mouse Island, Geronimo Stiltonoot and his family offer to help the stranger look for a hidden treasure.