The Valley of Ghosts is a crime novel by the British writer Edgar Wallace which was first published in 1922.The novel was originally serialised in The Popular Magazine, Jul 20-Sep 7, 1922, in four installments, and the first UK book edition was by Odhams Ltd., in London, in 1922. Small, Maynard & Company published the first US book edition, in New York, in 1923. (This summary is from Wikipedia.)
These books are free to read. Each is in the public domain in the United States; check your own country's rules before you copy or share one.
