The story revolves around the mysterious Harlequin Opal, a valuable gemstone with a dark history. The novel follows the adventures of a young woman who inherits the opal and becomes embroiled in a complex web of deceit, theft, and murder. As she navigates the treacherous world of London's high society, she uncovers secrets about her family's past and the true nature of the opal.
By Fergus Hume · First published 1893 · Genre: Adventure, Historical Fiction, Romance · 13 chapters