Sherlock Holmes and the Four Corners of Hell by Seamus Duffy

In “The Adventure of the Soho Picture Gallery” three people are murdered in London. The murders are accompanied by unmistakable symbols of ritualism. Holmes’s trail leads to a respected peer of the realm and he unearths a web of vice, deception, and intrigue beneath Victorian society’s respectable veneer.

“The Adventure of the Edmonton Horror” features a case which causes the wildest speculation, and which seems destined to join the apocrypha in Holmes’s uncommonplace book, a collection of the strangest and most mysterious occurrences ever recorded in the capital. Is it a matter for a detective, a clergyman, or an occultist?

In “The Adventure of the Rotherhithe Ship-breakers” Holmes tracks down a would-be assassin, with no one certain who the bullet went for. The investigation leads Holmes to one of the foulest, most dangerous corners of riverside London, a criminal plague spot which even the locals call the Four Corners of Hell.