Wild Dark Shore

Australian writer McConaghy (Migrations) depicts in this urgent if uneven saga a family’s attempt to survive on a desert island in a near future ravaged by climate change. After fleeing Australia eight years earlier due to fires, floods, and other natural disasters, Dominic Salt lives with his three children on Shearwater Island, a remote former research outpost between Tasmania and Antarctica, where he tends a seed vault meant to replenish global food supplies. His wife, Claire, died before the voyage, and he still has conversations with her in his mind. During a storm, his oldest daughter, 17-year-old Fen, rescues a woman named Rowan who washes ashore following a shipwreck. Radio contact with the outside world is impossible, as all the island’s communication systems have been mysteriously destroyed, and it turns out that Rowan’s missing husband, Hank, was the team leader of the island’s research station. McConaghy ratchets up the tension as the characters’ paranoia and mutual suspicion increases and their motives are revealed, though she scuttles the momentum with predictable romantic subplots, and a late-stage plot twist strains credulity. For the most part, though, McConaghy blends entertainment with a sobering message about conservation and the impacts of geographic isolation. Readers of climate fiction ought to check this out. Agent: Sharon Pelletier, Dystel, Goderich & Bourret. (Mar.)