Professor James Moriarty has but one desire left in his shattered life: to prevent the man who ruined him from harming anyone else. Then he meets amber-eyed Angelina Gould and his world turns upside down.

At an exhibition of new inventions, an exploding steam engine kills a man. When Moriarty tries to figure out what happened, he comes up against Sherlock Holmes, sent to investigate by Moriarty's old enemy. Holmes collects evidence that points at Moriarty, who realizes he must either solve the crime or swing it for it himself. He soon uncovers trouble among the board members of the...

James and Angelina Moriarty are settling into their new marriage and their fashionable new home -- or trying to. But James has too little to occupy his mind and Angelina has too many secrets pressing on her heart. They fear they'll never learn to live together. Then Sherlock Holmes comes to call with a challenging case. He suspects a prominent Harley Street specialist of committing murders for hire, sending patients home from his private hospital with deadly doses or fatal conditions. Holmes intends to investigate, but the doctor's clientele is exclusively female. He needs Angelina's...