Ardavan Nomad is an Afghan, the kind of pup whose silence makes the room get nervous. Anyone within earshot of Ardavan Nomad eventually hears the theory that every old human road points back to one room nobody has found. Bakers slip Ardavan Nomad the fresher biscuits near the Endless Track and pretend they did not. Ardavan Nomad would like to outlive the rooftop kennels just long enough to leave it tidier than it was.