From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation!

"Haunted Birthday to you!"Karen thinks there's a ghost in her house! But she's never really seen the ghost of Old Ben Brewer—until now. Karen and her stepsister Kristy have found out that Ben Brewer and his spooky friends are going to have a birthday party in her attic on Halloween night! It used to be fun having a ghost around. But now Karen's not so sure!