In the Middle Ages, young squire Tristan of the Knights Templar, King's Archer Robard, and Muslim assassin Maryam work together to protect the Holy Grail as they travel across France toward England, a journey that takes them to the Cathar fortress of Montségur.

Young Squire Tristan, Robard, Maryam and Angel make one last desperate push to deliver the Holy Grail to safety in 1191 Scotland, but the way is full of danger as new enemies are met and Sir Hugh attempts to thwart them at every turn.

In the fourteenth century, Templar knight Jean de Saint-Clair was tasked with piloting the order's treasure-laden fleets off the coast of France. To this end, he used a Jacob's Staff, a world-changing nautical instrument supposedly developed in his own time. Retired Army Ranger John Holliday knows better, for he possesses a similar instrument -- one found in the hands of a four-thousand-year-old Egyptian mummy. Holliday suspects that Saint-Clair might...

Retired Army Ranger Lt. Col. John Holliday is swept into an adventure as deadly as it is secretive when an archaeologist friend makes a bizarre find in Ethiopia. But when he follows a trail of clues through the chaotic and lawless horn of Africa, he finds himself hunted as he comes closer to a priceless treasure that can only be found by those who can solve a riddle from the past.