Edward Marston has written well over a hundred books, including some non-fiction. He is best known for his hugely successful Railway Detective series and he also writes the Bow Street Rivals series featuring twin detectives set during the Regency; the Home Front Detective novels set during the First World War; and the Ocean Liner mysteries.

One island of wealth and luxury remains in the war-torn lands of Yorkshire, the castle of merchant Aubrey Maminot which holds two great terrors: the rogue Olaf Evil Child, a hero of the poor and conquered Saxon people, and the ravenous lions Maminot keeps as pets. The lions make a feast of an anonymous young man who tries to sneak into the castle. Why would someone commit such an act of suicide?