The Sasha Erdos Institute of Dimensional Research is a wonderful place to work, if you enjoy damp, half-drowned caves, the smell of mildew, cold drafts, crocodiles, and the occasional hole in reality. There is a slight chance you will vanish from past, present, and future in one fell swoop, but that's terribly unlikely. Please sign all the waivers. The Institute hires Isaac Skinner when his doppelganger robs their museum, murders one of their employees, and escapes into thin air. They offer Isaac something he’s wanted for seven years: a chance to go sailing across the fabric of reality. In exchange, they expect him to catch his elusive doppelganger. As he descends into the caverns, Isaac blunders into a web of secrets and must choose between his job as a wizard, his search for the truth, and the alien ocean on the other side of the universe. Alongside an arrogant weaver and a soft-spoken pirate, he strives to escape SEIDR's labyrinth.