It's meant to be a stress-free holiday in London, but suddenly Seth and Nadiya will need all their skills asDefenders. Ghostly activity is threatening a Premier League club as they build a new stadium on Roman ruins.One worker has already met a grisly death - and many other lives are in danger. The horror of modern injusticeseems to have woken the spirits of the past ...What can the Defenders do to change things?Action-packed follow-up to Killing Ground in the Defenders series.