Professor Moriarty Books in Order

John Gardner’s Professor Moriarty books take one of Sherlock Holmes’s most famous enemies and move him to the center of the stage. Instead of treating Moriarty as a shadowy problem for Holmes to solve, Gardner imagines the professor as the head of a vast criminal network, a planner, a manager, and a very dangerous survivor.

The setup begins with the old question left hanging over Reichenbach Falls. What if Moriarty did not truly vanish there? Gardner uses that opening to build a world of Victorian and Edwardian underworld politics, where thieves, informers, professional killers, crooked gentlemen, and continental crime bosses all have their own rules.

It’s a crime empire story in period clothes.

The Return of Moriarty brings the professor back into London and into conflict with rivals who have moved on his territory. The Revenge of Moriarty pushes the power games further, with Moriarty trying to discipline international criminal interests and keep Sherlock Holmes from derailing his plans. The posthumously published Moriarty returns to the same underworld, with the professor facing betrayal, scattered followers, and the problem of keeping fear alive when every ambitious criminal wants a piece of his throne.

Holmes still matters, of course. So does the whole foggy London machinery of the Holmes myth, inspectors, disguises, coded messages, and the sense that one wrong step can bring the police or a rival gang through the door. But the real interest is watching Gardner reverse the usual angle. We are not waiting for Holmes to explain the crime. We are watching the crime being organized.

The tone is more robust thriller than delicate puzzle mystery. Gardner likes movement, false identities, old scores, and competing professional systems. His Moriarty is not just a clever villain with a chalkboard of schemes. He is a working executive of crime, and that means payroll, loyalty, reputation, and punishment.

Read these in order if you can. The books build a loose arc around Moriarty’s survival, his return to power, and the strain of defending that power against enemies who understand his methods all too well.