Ferrario, Giuseppe

When Geronimo Stilton writes an article about the huge oyster he and his friends find, he worries that someone might want to steal it.

When Geronimo Stilton writes an article about the huge oyster he and his friends find, he worries that someone might want to steal it.

Geronimo Stilton, who loves Valentine's Day, has a date with Petunia Pretty Paws, but when he receives a call from private investigator Hercule Poirat, who needs help with a mystery regarding a stolen painting in New Mouse City, he has trouble deciding what he should do.