David Almond 
Joe Quinn’s Poltergeist [PDF ebook] 

A dark, powerful and moving short story from the internationally acclaimed author of Skellig.Joe Quinn tells everyone about the poltergeist in his house, but no one believes him. No one that is, except for Davey. He’s felt the inexplicable presence in the rooms, he’s seen random objects fly through the air. And there’s something else … a memory of his beloved sister, and a feeling deep down that somehow it might be possible for ghosts to exist.