Susan and her husband Ben strive to rebuild their lives following their life and death battle with the diabolical Lord Mortimer. But the couple soon realise the threat to mankind’s future is far from over, as the fiendish Madam Scorpion continues Mortimer’s plans to build an army of soulless, ready to enslave the world at his command.

As Susan draws inspiration from the past, we meet Henry VIII’s secret seventh wife, find out what really happened at Stonehenge, cross the Atlantic to the blue haven with Sigrid the Shield-maiden’s Viking félag, and finally learn the horrifying truth about Mortimer’s wartime collaboration with the Nazis.

In the present, Susan and Ben’s children are embroiled in the deepening global crisis as the empty generation poses an ever-growing danger. But what soul inhabits their daughter? Is she truly evil, does she deserve to be exterminated? Or have they got the wrong girl?

While Susan makes a last attempt to save humanity, Ben races to complete a desperate mission of his own. Driven apart, each must hope the other will succeed.