Kopal

“How do you feel, Georgie?" whispered Mrs. Weasley.
George's fingers groped for the side of his head.
"Saintlike," he murmured.
"What's wrong with him?" croaked Fred, looking terrified. "Is his mind affected?"
"Saintlike," repeated George, opening his eyes and looking up at his brother. "You see...I'm HOLEY, Fred, geddit?”
― J.K. Rowling, Harry Potter and the Deathly Hallows

“Is this thing safe?"
"Safe as life," Gansey replied.”
― Maggie Stiefvater, The Raven Boys

“Death's got an Invisibility Cloak?" Harry interrupted again.
"So he can sneak up on people," said Ron. "Sometimes he gets bored of running at them, flapping his arms and shrieking...”
― J.K. Rowling, Harry Potter and the Deathly Hallows

“Where will we go?"
"I hear hell is particularly nice at this time of year.”
― Sarah J. Maas, Queen of Shadows