A Grimm Warning

["Characters in literature" "Magic" "Brothers and sisters" "Youths' writings" "War stories" "Fiction" "War" "Fairy tales" "Twins" "Characters and characteristics in literature" "Juvenile fiction" "Fantasy" "Siblings" "Children's fiction" "Magic fiction" "Brothers and sisters fiction" "Twins fiction" "War fiction" "nyt:series-books=2014-07-27" "New York Times bestseller" "Hermanos" "Magia" "Mellizas" "Spanish language materials" "Ficci\u00f3n juvenil" "Magic -- Fiction" "Brothers and sisters -- Fiction" "Twins -- Fiction" "Magia -- Ficci\u00f3n juvenil" "Hermanos -- Ficci\u00f3n juvenil" "Mellizas -- Ficci\u00f3n juvenil" "Fantasy fiction"]