Ancient tales of European Man, recorded by pious monks, tell of the Western Isles, from whence King Arthur's father was said to have come. Ancient and medieval maps show them off the Western Coast of France. Irish records refer to floating islands drifting past the Emerald Isle. Modern sailors sometimes sight great, many tiered cities near the ocean's horizon, but they are rarely believed. It is easier for modern man to believe in an optical illusion, the Fata Morgana. And then two modern, hardheaded engineers found the Western Islands....