LONDON, 1590. Queen Elizabeth I's control over her kingdom is wavering. Amidst a tumultuous backdrop of Spanish plotters, Catholic heretics and foreign wars threatening the country's fragile stability, the body of a small boy is found in the City of London, with strange marks that no one can explain. When idealistic physician Nicholas Shelby finds another body displaying the same marks only days later, he becomes convinced that a killer is at work,...

Treason sleeps for no man ... London, 1591. Nicholas Shelby, physician and reluctant spy, returns to his old haunts on London's lawless Bankside. But, when the queen's spymaster Robert Cecil asks him to investigate the dubious practices of a mysterious doctor from Switzerland, Nicholas is soon embroiled in a conspiracy that threatens not just the life of an innocent young patient, but the overthrow of Queen Elizabeth herself. With fellow healer and...

London, 1594. The Queen's physician has been executed for treason, and conspiracy theories flood the streets. When Nicholas Shelby, unorthodox physician and unwilling associate of spymaster Robert Cecil, is accused of being part of the plot, he and his new wife Bianca must flee for their lives. With agents of the Crown on their tail, they make for Padua, following the ancient pilgrimage route, the Via Francigena. But the pursuing English aren't the...