GERONIMO STILTON Book 3: CAT AND MOUSE IN A HAUNTED HOUSE
When Geronimo drives to visit his Aunt Sweetfur, he gets lost in the Dark Forest. His car breaks down, so he walks through the rain to the old castle he spies in the distance. The castle is not only neglected, it's surrounded by a moat --- and has blood-red windows. AND it just happens to be Halloween! The castle's flag has a picture of a cat, and cat statues guard the castle's entrance.
Geronimo is terrified, but he can't stay out in the storm. When he goes in, he discovers that Duke Bigpaw Cannycat owns the castle. Soon, he finds (gulp!) mouse bones in the kitchen, a cat ghost in the library, and a rat skeleton in a closet. Thea, Trap and Benjamin (Geronimo's sister, cousin and nephew) join him in this ghostly tail --- I mean, tale.