In his seventh novel Bram Stoker, author of the famous "Dracula", combines adventure, mystery, romance and the supernatural into a world where both mystery and science can exist side by side.
In 1902, the New York Tribune wrote:
"A great treasure of the Armada, hidden in a sea cave and sought not only by the hero but by the descendant of the Spaniard who shipped it, provides a starting point of excitement. A gang of ruthless murderers, thieves, and kidnappers in pursuit of the bewitching American heiress who is the heroine furnish forth enough suspense and terror for three ordinary tales."