Cornwall 1813. A silver cup lies half-forgotten in a dank cave, amongst a pile of stolen goods. Yet the tiny vessel and its inscription Amor gignit amorem haunts the lives of the still-feuding Poldark and Warleggan families, as Ross, Demelza and the ambitious and powerful Sir George Warleggan watch their children make the decisions that will shape their destinies. In the closing years of the wars against Napoleon, for Jeremy and Clowance, and for arrogant, cynical Valentine Warleggan, these are troubled and momentous times ...