A to Z Mysteries the Haunted Hotel by Ron Roy

Dink, Josh, and Ruth Rose get hired to get rid of a ghost in the Shaigra-la Hotel from Mr. and Ms. Spiuel. They ask the Jeffer because the ghost scared away the other guest. Mr. and Ms. Jeffer said that they had a glowing robe and it was carrying a silver sword and crazy white hair and black holes instead of eyes. But when Dink, Josh, and Ruth Rose figure out that the sword was just painted wood and a wig plus clown make-up from last Halloween. And a tape recording to make spooky noises. So Dink, Josh, and Ruth Rose knew that it was the Jeffers pretending to be the ghost and Eath, Rail, and Rook were planning to trick them into selling the hotel so that Eath, Rail, and Rook would use it to make a movie for money and brought the papers for.