house in the woods that is most definitely haunted. But the ghosts are not the problem. They have been trapped at the orphanage by a cranky poltergeist who erupts into violent tantrums if they put even a spectral toe across the property line. The ghosts ask the boys to help free them?but who is the angry poltergeist and what does it want? To solve the mystery, the trio must investigate the orphanage's dark past, evade Aldo's ghastly older brother, borrow a skeptical librarian, and duck lots of flying furniture, all while failing to agree on almost anything. Can they defeat the evil entity and rescue the ghosts before their parents catch on and ground them for eternity?