The Haunting of Hill House by Shirley Jackson

It is the story of four seekers who arrive at a notoriously unfriendly pile called Hill House: Dr. Montague, an occult scholar looking for solid evidence of a "haunting"; Theodora, the lighthearted assistant; Eleanor, a friendless, fragile young woman well acquainted with poltergeists; and Luke, the future heir of Hill House. At first, their stay seems destined to be merely a spooky encounter with inexplicable phenomena. But Hill House is gathering its powers—and soon it will choose one of them to make its own.