" Sometimes, when I lie awake at night,” said Wish, with big eyes, “I think I can hear, beyond the Wall, the sound of giants howling, as if they’re being attacked by Witches… Don’t you hear that, Bodkin? Are we supposed to just stay here, safe behind our Wall, and let that carry on? "

― Cressida Cowell , Twice Magic (The Wizards of Once #2)