A review by erinmp
The Haunted Showboat by Carolyn Keene

3.0

Nancy, George and Bess are headed to New Orleans for Mardi Gras! But it won't be all fun and games, because of course there is a mystery involved. It starts before the girls even leave River Heights: Nancy's car is stolen and then someone continues to attempt to delay their journey. Once in New Orleans, the girls learn about the mysterious river showboat that appears to be hauntes. It's up to Nancy and her chums to figure it all out before Mardi Gras!

Another good Nancy Drew mystery. Not the best I've read, but very inventive like the others!