It's Halloween on Mouse Island, and it seemed like everyone was out to get me, Geronimo Stilton! My cousin Trap kept pulling scary pranks on me. And then my sister Thea told me I had to write a book about Halloween in less than one day! Before you could say boo, my nephew Benjamin had dragged me to a graveyard to do research. There I met a very spooky mouse who -- yikes! -- tried to lock me up in her coffin! Oh, how would a 'fraidy mouse like me ever survive the year's scariest holiday? Can a scaredy mouse like Geronimo survive the year's most terrifying holiday? Candied cheese treats! It was Halloween, the spookiest day of the year. And it seemed like everyone was out to play tricks on me, Geronimo Stilton. Things went from bad to worse when my nephew Benjamin dragged me to a graveyard to do research for my newest book. There I met Creepella von Cacklefur, a very spooky mouse who - yikes! - tried to lock me up in her coffin! Oh, how would a 'fraidy mouse like me ever survive the year's scariest holiday?