Scylla and Charibdis
Charybdis, who lurked under a fig tree a bowshot away on the opposite shore, drank down and belched forth the waters thrice a day and was fatal to shipping. Her character was most likely the personification of a whirlpool. The shipwrecked Odysseus barely escaped her clutches by clinging to a tree until the improvised raft that she swallowed floated to the surface again after many hours. Scylla was often rationalized in antiquity as a rock or reef. Both gave poetic expression to the dangers confronting Greek mariners when they first ventured into the uncharted waters of the western Mediterranean. To be between Scylla and Charybdis means to be caught between two equally unpleasant alternatives.
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