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

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  Henry Fuseli's painting of Odysseus facing the choice between Scylla and Charybdis, 1794–1796

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  The Strait of Messina, with Scylla (underlined in red) and Charybdis on the opposite shores

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  A 19th-century engraving of the Strait of Messina, the site associated with Scylla and Charybdis