Scylla in Wikipedia

In Greek mythology, Scylla (pronounced /ˈsɪlə/, sil-uh; Greek: Σκύλλα, Skulla)[1] was a monster that lived on one side of a narrow channel of water, opposite its counterpart Charybdis. The two sides of the strait were within an arrow's range of each other-so close that sailors attempting to avoid Charybdis would pass too close to Scylla and vice versa...

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