Phorcys

Phorcys was a son of Pontus and Gaia, making him a brother to Nereus, Thaumas, Eurybia, and Ceto. While Nereus represented the calm, knowable sea and was called the Old Man of the Sea for his gentle wisdom, Phorcys embodied everything about the ocean that was hostile, alien, and terrifying. He was the god of the deep's hidden dangers — the unseen rocks, the sudden currents, the creatures lurking below the surface. With his sister-wife Ceto, whose name simply meant "sea monster," Phorcys fathered an astonishing catalogue of horrors. Their children included the three Gorgons (Medusa, Stheno, and Euryale, whose gaze turned men to stone), the three Graeae (the grey sisters who shared one eye and one tooth between them), Echidna (the half-woman half-serpent mother of monsters), the dragon Ladon who guarded the golden apples, and Scylla, the six-headed beast who devoured sailors from her cliff. This made Phorcys and Ceto the ultimate monster-parents of Greek mythology. Homer gave Phorcys his own harbour on the island of Ithaca, where Odysseus was finally set ashore by the Phaeacians. That a harbour sacred to the father of monsters was chosen for the hero's homecoming was a deliberate poetic choice — even safe arrival happened under the shadow of the dangerous deep.