Eta Island, the largest in the Midnight Ocean, is the capital of the Ruby Archipelago. There are four known routes from the island: Jorvik Island, Cranberry Island, Lynx Island and Islay of Luthien. Eta is a midway point in the popular pillaging circuit of Jorvik - Eta - Luthien - Jorvik. The island lies at the top of the Diamond - Ruby Corridor, travelling south from the heart of Ruby into Diamond via Jorvik and Turtle.