Ithaka, commonly referred to by its inhabitants as the "Cradle of Snakes", is an Imperial Ocean World and Feral World located in a sector of space known as the Reef Stars in the Segmentum Obscurus. This is a known recruiting world of the Iron Snakes Space Marine Chapter. It is from this tempestuous water world that the Iron Snakes draw most, if not all, of their Neophytes.