Glaucus and Scylla

In the “Metamorphoses”, Ovid tells of Glaucus, who leaped into the sea after enjoying a magic herb and was turned into a water demon. He loves the nymph Scylla, who nonetheless spurns him. Scylla is turned into a sea monster with six heads and twelve feet by poison given to her by the jealous witch Kirke, who for her part loves Glaucus. Legend tells that this monster, together with Charybdis, threatens the Straits of Messina and eats up passing sailors.