A series of grisly murders coincide with the arrival of a boy's new neighbor—a strange little girl—in this international bestselling gothic vampire tale. It is autumn 1981 when inconceivable horror comes to Blackeberg, a suburb in Sweden. The body of a teenager is found, emptied of blood, the murder rumored to be part of a ritual killing. Twelve-year-old Oskar is personally hoping that revenge has come at long last—revenge for the bullying he endures at school, day after day. But the murder is not the most important thing on his mind. A new girl has moved in next door—a girl who has never seen a Rubik's Cube before, but who can solve it at once. There is something wrong with her, though, something odd. And she only comes out at night . . . Originally published as Let the Right One In . The inspiration for the 2008 Swedish film, the 2022 Showtime streaming series, and the 2010 American film Let Me In .