Beneath the Stairs by Jennifer Fawcett

A woman returns to her hometown after her childhood friend attempts suicide at a local haunted house—the same place where a traumatic incident shattered their lives twenty years ago.

Few in sleepy Sumner’s Mills have stumbled across the Octagon House hidden deep in the woods. Even fewer are brave enough to trespass. A man had killed his wife and two young daughters there, a shocking, gruesome crime that the sleepy upstate New York town tried to bury. One summer night, an emboldened fourteen-year-old Clare and her best friend, Abby, ventured into the Octagon House. Clare came out, but a piece of Abby never did.

Twenty years later, an adult Clare receives word that Abby has attempted suicide at the Octagon House and now lies in a coma. With little to lose and still grieving after a personal tragedy, Clare returns to her roots to uncover the darkness responsible for Abby’s accident.