The Humming Room ( book ) by Ellen Potter

12-year-old Roo Fanshaw just wants to be left alone. That's how she got to be so good at hiding in the first place. Having grown up in a broken home, she can only find peace by hiding. Though she's an expert hider, even Roo can't escape the terrors lurking behind every corner of her gloomy new home. Piercing cries echo through the halls and unexplainable humming pours out from behind locked doors. - mystery/ghost - perfect for elem/middle school - great condition! - no ripped pages or stains