Stacia Deutsch 
That’s the Spirit! [PDF ebook] 

The brown house at the end of Shaker Street is a bit shady. Everyone who moves in gets scared off. Liv is convinced the house is haunted by the ghost of its late owner, General Pablo Carlos, but Michael doesn’t buy it and Leo wants nothing to do with ghosts! One thing’s for certain, something fishy is going on. The Mysterious Makers set to making a ghost detector to determine just what’s behind the spirit on Shaker Street. Real-life makers can keep the fun going and create their own detector and levitating ghost with instructions at the end of the book, and a glossary and reader questions make this a great choice for libraries.