Justin Agnarsson is stationkeeper and lone crewman of South Atlantic House of Refuge #49, a floating sanctuary for the thousands of mariners and seasteading families who live and work in the 350-mile long Plata Raft. Now, war threatens to bring an end to his lifesaving mission as an Argentine warship pursues a pair of refugees to the station. A house of refuge is supposed to be inviolable, but the Argentines are hell bent on their mission. Alone and virtually defenseless, Agnarsson faces an impossible choice between duty and survival. But when the brutality of war threatens to unravel the fabric of civilization, more than lives are at stake.