England, 1560 - The mysterious fate of Amy Dudley threatens to ignite a rebellion led by the sinister Watchers that could destroy Elizabethan England. Can Sir Samuel Banks, a former royal spy and death doctor, discover the truth about Amy Dudley before it’s too late to save queen and country from The Watchers' malevolence.

Edinburgh, 1840 - Doctor Gordon McCraken seeks escape from tragedy and his unravelling mind by attempting to solve the 1560 murder of Lady Amy Dudley. Gordon's journey for answers will take him far from Edinburgh, but he's not the only one searching and some secrets are best left hidden.

For hundreds of years The Watchers have waited, now they have quarry.

Oxford, 2007 – Iris Shaw, a seemingly unremarkable woman receives a dangerous bequest; to save Lady Amy Dudley’s condemned soul. Driven by her own dark secrets Iris sets out to find Amy Dudley, prove murder and let her ladyship finally rest in peace.  But when Iris uncovers secrets the Watchers have long been searching for, she must solve the mystery of Amy Dudley’s fate in order to survive. Can Iris save Amy Dudley, her family and herself before the Watchers destroy it all?