Keep your eyes peeled, because the spookiest night of the year has finally arrived on Mouse Island! It is Halloween, and poor Geronimo Stilton feels like every single rodent is out to get him. First, his tricky cousin Trap keeps pulling terrifying pranks. Then, his demanding sister Thea forces him to write an entire book about Halloween in just one single day! Before you can even shout boo, Geronimo is dragged straight into a creepy, fog-filled graveyard by his enthusiastic nephew Benjamin. Just when you think things cannot get any worse, you will come face to face with a highly spooky mouse who is absolutely determined to lock Geronimo inside her wooden coffin! Oh no! How will a total fraidy mouse ever survive the scariest holiday in existence? Read this delightfully spooky, laugh-out-loud chapter book to find out if Geronimo can conquer his fears and escape the graveyard!