|Although this article is based on canonical information, the actual name of this subject is conjectural.|
In 2000, the Scooby Gang was confronted to poltergeists manifesting at the Lowell House, as a result of the severe abuse and repression a group of teenage orphans had suffered at the hands of Genevieve Holt. However, the ritual was without success, as Riley Finn and Buffy Summers having sex that generated the poltergeist energy. It was the efforts of Xander Harris and Anya Jenkins that permanently stopped the poltergeists, walking into Riley's room and interrupting the couple.
"Children of the past. Spirits of Lowell. Be guided by our light. Come forth and be known to us. We implore you. Be still. -Find it in your hearts to leave our friends passage. Transform your pain. Release your past. And… uh… get over it."