When young idealist Tom publicly humiliates politician Monty in a Cornish pub, it sparks a simmering feud that cascades through their intertwined lives.The consequences of their argument, and the deadly wager they strike, will cascade down the decades.Years later, they find themselves a long way from St Piran onto a colossal iceberg drifting south away from Greenland, their only companion a starving polar bear.This is a heart-stopping tale of anger, tragedy, and enduring love, cast against the long unfolding backdrop of an irreversible global crisis.