The Boar's Eye was a monstrous maelstrom in the sea, formed by tidal currents that collided between Beirland and Nia. When the tide waxed, it rotated north to west; when the tide waned, it rotated north to east. On average, the Eye's center was a league in diameter, while the arms were up to fifteen miles across. Ships unlucky enough to be caught by it were utterly destroyed, with remnants of the vessels found on the beaches of both islands. It was the terror of many sailors and pirates. Even Uthar, Jeod's finest seaman, was mortally afraid to go through it.