June 1221: a tragic death at Conisbrough sends Edwin Weaver and his friend Sir Martin on an unexpected journey. But a baffling letter follows them, one which plunges them into danger as they travel to the manor of Martin's estranged father, deep inside Sherwood Forest, to find a dying man who can only gasp out a few cryptic phrases. Edwin has his work cut out to solve the mystery – the people with the most compelling reasons to commit the murder could not possibly have done so, while those with the opportunity have seemingly no motive. Martin, meanwhile, must try to reconcile himself with his family even as he remains convinced that he is destined to bring ill luck and death wherever he goes. When another murder attempt is made, Edwin realises he must work quickly to stop more death being visited on the innocent.