Charlotte McConaghy’s latest novel, “Wild Dark Shore,” opens with an enigma: A mysterious, half-drowned woman washes ashore.

The stranger’s name is Rowan, and she has arrived on Shearwater, a remote island near Antarctica. The island, which houses an important seed bank, was once teeming with a community of scientists, but now the project is shutting down, the workers have left and the land lies quiet and deserted, everybody gone except for the Salt family, whose members are all lost in their own way. And all are hiding terrible secrets.

They’re not alone. Rowan herself has come to the island with a hidden purpose, putting this small community on a crash course for a long-overdue reckoning.

On this week’s episode, the Book Club host MJ Franklin discusses “Wild Dark Shore” with his colleagues Lauren Christensen and Elisabeth Egan.

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