Wealthy young Lord Geoffrey St. Maurice has fallen in love with the beautiful Italian songstress Adrienne Cartuccio. He has a rival for her love however in the form of Count Leonardo di Marioni, and the gentlemen become bitter enemies. Twenty-five years later, this twisted love-triangle will follow Adrienne to her new life in England, as the dangerous group The Order of the White Hyacinth plan to exact justice on the happy couple. A gripping, passionate tale of romance, rivalry, and revenge from author E. Phillips Oppenheim.