A Boom-Flurry is a sentient cactus that lives in the desert separating the Callas from Thunderclap. They are covered in long needles and smell of gin and juniper. They are carnivorous and can move their arms to catch their prey. Jake Chambers and Oy came across two boom-flurries being used as sentries in front of the Calla Bryn Sturgis Dogan. Andy broke through their arms when they blocked his path.