The intruder

A woman fears she made a fatal mistake by taking in a blood-soaked tween during a storm. High winds and torrential rain are forecast for "The Middle of Nowhere, New Hampshire," making Casey question the structural integrity of her ramshackle rental cabin. Still, she's loath to seek shelter with her lecherous landlord or her paternalistic neighbor, so instead she just crosses her fingers, gathers some candles, and hopes for the best. Casey is cooking dinner when she notices a light in her shed. She grabs her gun and investigates, only to find a rail-thin girl hiding in the corner under a blanket. She's clutching a knife with "Eleanor" written on the handle in black marker, and though her clothes are bloody, she appears uninjured. The weather is rapidly worsening, so before she can second-guess herself, former Boston-area teacher Casey invites the girl--whom she judges to be 12 or 13--inside to eat and get warm. A wary but starving Eleanor accepts in exchange for Casey promising not to call the police--a deal Casey comes to regret after the phones go down, the power goes out, and her hostile, sullen guest drops something that's a big surprise. Meanwhile, in interspersed chapters labeled "Before," middle-schooler Ella befriends fellow outcast Anton, who helps her endure life in Medford, Massachusetts, with her abusive, neglectful hoarder of a mother. As per her usual, McFadden lulls readers using a seemingly straightforward thriller setup before launching headlong into a series of progressively seismic (and increasingly bonkers) plot twists. The visceral first-person, present-tense narrative alternates perspectives, fostering tension and immediacy while establishing character and engendering empathy. Ella and Anton's relationship particularly shines, its heartrending authenticity counterbalancing some of the story's soapier turns. A grim yet gleefully gratifying tale of lost innocence and found family. Copyright (c) Kirkus Reviews, used with permission.