Karen's Haunted House (Baby-Sitters Little Sister #90)

From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! BOO!Karen’s class gets to help decorate a haunted house for Halloween! It is lots of fun making things look scary. But then Karen and her friends start hearing spooky noises. And someone is playing tricks, too. Who -- or what -- is haunting Karen’s haunted house?