Gatekeeper

When Elliott Beaumont Berger (son of Wolfe Berger, an entrepreneur and gambler) and his mother, the Duchess of Beaumont, discover that he is the gatekeeper of the Beaumont treasure, he sets out to unravel the mystery surrounding his families and their connection to the ancient Order of Saint James. As a knight of the Order, he travels through the Europe of the early 1800s. Intrigues and unknown conspirators against the Order challenge Elliott, but he prevails, discovering the location of the treasure. Hidden deep beneath the catacombs are seven heavily vaulted doors, which have not been opened for about a hundred years. Only a chosen gatekeeper holds the key.