“The restlessness and the longing, like the longing that is in the whistle of a faraway train. Except that the longing isn't really in the whistle—it is in you.”

“Until the longing came again, like the longing that you hear in the whistle of a train that is going far away. But the longing isn't really in the whistle, the longing is in you—for the wonder and the loveliness that is in the world, and everywhere.”

“Jace whistled. "Raphael is really having an exceptionally bad night."-Jace, pg.283-”

“Alban’s eyes widened, palpable shock rolling off him. “Daisani’s assistant? That Vanessa Gray?” “That one.” Alban whistled, a long high sound of wind howling through stone, and Margrit looked at him in surprise. “You can whistle?” His eyebrows wrinkled. “Can’t you?” “Of course, but it’s so frivolous. You’re sort of stolid. I wouldn’t have thought whistling was in a gargoyle’s nature.” Alban chuckled. “I don’t do it often.”

“...The world was really one bee yard, and the same rules work fine in both places. Don't be afraid, as no life-loving bee wants to sting you. Still, don't be an idiot; wear long sleeves and pants. Don't swat. Don't even think about swatting. If you feel angry, whistle. Anger agitates while whistling melts a bee's temper. Act like you know what you're doing, even if you don't. Above all, send the bees love. Every little thing wants to be loved.”

“Tristan, dressed in all black with a long dagger in his hand, exited the den as Gabriel reached the main floor . Gabriel stopped whistling and paused. “Please tell me you’re going to a ninja convention.”