Charybdis
Charybdis is a sea monster in Ancient Greek mythology. It was said that she was a daughter of Poseidon and that when she breathed in and out the sea would rise and fall. She was also the sister of Scylla.When angry she would turn into a whirlpool and suck in anything within half a mile.
Charybdis Media
Henry Fuseli's painting of Odysseus facing the choice between Scylla and Charybdis, 1794–1796