Mandie and the Night Thief

is the thirty-seventh book in the Mandie series.
==Book Description==
"I love your Mandie books. I read a chapter every night. I don't want to put it down once I start," write a young reader from Virginia.
When Mandie and her friends arrive at the Pattons' house in Charleston, Tommy Patton quickly admits that the servants have been hearing strange noises on the third floor - a place that is rarely used. Is there an intruder up there? Or is the house haunted, like some believe? A thorough search of the third floor unveils some odd things, but no questions are answered abvout the noises in the night.
When Mandie's and her grandmother's jewelry starts to diappear, Mandie is more anxious than ever to figure out the mystery. Who-or what-is in the house?
Will Mandie find the night thief in time?
(Description from the backcover)