âThe Undisclosed Clientâ is a collection of short stories published between 1904 and 1929 from the British Mysteriesâ master Edgar Wallace, directly from the Golden Era of the genre. Edgar Wallace was an English novelist, journalist and playwright, who was an enormously popular writer of detective, suspense stories, and practically invented the modern âthrillerâ. His popularity at the time was comparable to that of Charles Dickens. The stories are fast-paced, with good twists and turns, an unusual criminal scheme and a little romance. These genuine mystery stories take the reader from one exciting adventure to another with all the adroitness and ingenuity of Mr. Wallaceâs previous successful books. The book highly recommended for people who like to treat a mystery story as a solvable riddle.