The many adventures of Professor Craig Kennedy were chronicled by Arthur B. Reeve (October 15, 1880 - August 9, 1936). Reeve was an American mystery writer who created 82 Craig Kennedy mystery stories. The stories have a very Sherlock Holmes type feel, In fact Kennedy has been referred to as the "American Sherlock Holmes". Along with his reporter friend, Walter Jameson, Kennedy solves many crimes and unveils mysteries using science. This book contains twelve of Professor Kennedy's adventures. The interesting thing about these stories is Kennedy uses newly discovered science from his time period, which we take for granted today...

The passengers in the sleeping car of the Rome Express were just woken and informed that they will reach Paris soon, and a general bustle fills the train. Only one passenger cannot be awoken by the porter, no matter how loudly he knocks on the compartment door. At last, when the door is forced open, the occupant of the compartment is found dead - stabbed to the heart! The murderer must be found among the passengers...

An army officer, and a mysterious lady with a maid and baby in tow, are the only passengers on the Engadine express from Calais. The lady is afraid that someone is following her. Who is she? And what is her strange package? One suspicious conversation and two private detectives later Colonel Basil Annesley is determined to find out!

The Shrieking Pit is one of Arthur Rees's earlier works, and is a good old fashioned murder mystery story. Grant Colwyn, a private detective, is holidaying in East Anglia when he notices a young man at a nearby table behaving peculiarly. The young man later leaves the hotel without paying his bill, and turns up in a nearby hamlet in the Norfolk marshes where he takes lodgings at the village inn. The next day, another guest at the inn is found dead, and the young man is missing. Can Colwyn sort out the mystery and prove the young man's innocence one way or the the other?

"The Great God Pan" is a novella written by Arthur Machen. A version of the story was published in the magazine Whirlwind in 1890, and Machen revised and extended it for its book publication (together with another story, "The Inmost Light") in 1894. On publication it was widely denounced by the press as degenerate and horrific because of its decadent style and sexual content, although it has since garnered a reputation as a classic of horror. Machen’s story was only one of many at the time to focus on Pan as a useful symbol for the power of nature and paganism...

The Angels of Mons is a popular legend about a group of angels who supposedly protected members of the British army in the Battle of Mons at the outset of World War I. The story is fictitious, developed through a combination of a patriotic short story by Arthur Machen, rumours, mass hysteria and urban legend, claimed visions after the battle and also possibly deliberately seeded propaganda.