Pleasing the Ghost

Pleasing the Ghost by Creech, Sharon. library edition. ISBN: 9780060269869.

Ever since his dad died, Dennis has been seeing ghosts. Lots of them. Theres been a veritable ghost parade through his room. Often they are ghosts he knows, and most are friendly, so Dennis doesnt mind-but it would be nice if someone else could see them, or at least believe that he sees them. But now a new ghost has arrived, and hes as eccentric in the afterlife as he was in real life. Its his uncle Arvie, and he seems to want something, but he talks in puzzles. He keeps talking about "boodled trampolink." Dennis would love to help him "dunder" it, if only he knew what that meant. Arvie will be a hard ghost to have around.