The Giant Enceladus was thought to lay buried under Mount Etna, the volcano's eruptions being the breath of Enceladus, and its tremors caused by the Giant rolling over from side to side beneath the mountain (the monster Typhon and the Hundred-Hander Briareus were also said to be buried under Etna). The Giant Alcyoneus along with many giants were said to lie under Mount Vesuvius, Prochyte (modern Procida), one of the volcanic Phlegraean Islands was supposed to sit atop the Giant Mimas, and Polybotes was said to lie pinned beneath the volcanic island of Nisyros, supposedly a piece of the island of Kos broken off and thrown by Poseidon.