Emmett Rourke has kept the light on Grey Rock for two years, alone, since the night he couldn't save someone from the sea. He doesn't talk to the ferry captain. He doesn't answer letters. Then a storm drives Guest onto his island, and the ferry won't come for a week. He gives Guest his only spare room, his driest sweater, and absolutely no conversation. But every night he leaves the lantern burning outside Guest's door.