When Greer is discharged from hospital a week before Christmas, she, Shafeen and Nel decide to investigate the De Warlencourt London residence, where they discover that the Dark Order of the Grand Stag could have infiltrated right to the heart of the British government. Meanwhile Ty, under her codename mrs-de-warlencourt, sends dispatches from Longcross. But when the De Warlencourt twins start planning a Boxing Day Hunt, fearful for Ty's safety, Greer, Shafeen and Nel race back to Longcross. Will they reach her in time - or will history horribly repeat itself . . . ?