Edgar Wallace 
The Missing Million 

When millionaire Rex Walton mysteriously vanishes on the eve of his wedding, a chain of strange, violent events is set in motion. Intrepid Joan Walton assists Inspector Dicker in the search for her brother. The main suspect is notorious criminal „The Panda” („The Prince of Blackmailers”). You quickly find out that Rex has his own connection to the blackmailer. This is a great example of The Golden Age of Detection. It has many more characters than the typical mystery from this era making it difficult, if not impossible, to simply eliminate the Hero Detective, the Heroine Love Interest, and the Obvious Suspect to figure out who the bad guy is. „The Missing Million” is a mystery novel from the prolific author of detective fiction Edgar Wallace.