She wanted exercise primarily, hard physical exercise that would tire her out and keep her mind occupied and prevent her from thinking, and the horse she rode supplied both needs. He required watching all the time. She let him out to his full pace for his own sake and hers, and the air and the movement banished her headache, and a kind of exhilaration came over her, making her almost happy. After a while she reined in her horse and waved to Gaston to come alongside. "Tell me of this Vicomte de Saint Hubert who is coming. You know him, I suppose, as you have been so long with Monseigneur?" Gaston smiled. "I knew him before Monseigneur did. I was born on the estate of Monsieur le Comte de Saint Hubert, the father of Monsieur le Vicomte. I and my twin brother Henri. We both went into Monsieur's le Comte's training stables, and then after our time in the Cavalry Henri became valet to Monsieur le Vicomte, and I came to Monseigneur." Diana took off her hat and rubbed her forehead thoughtfully. Fifteen years ago Ahmed must have been about twenty. Why should an Arab chief of that age, or any age, indulge in such an anomaly as a French valet, or for that matter why should a French valet attach himself to an Arab Sheik and exile himself in the wilds of the desert? Whichever way she turned, the mystery of the man she loved seemed to crop up. She started arguing with herself in a circle--why should the Sheik have a European servant or why should he not, until she gave it up in hopeless confusion. She turned to Gaston with the intention of asking further of the coming visitor, and, keeping The Dancer as still as she could, sat looking at the valet with great, questioning eyes, fanning her hot face with her hat. Gaston, whose own horse stood like a rock, was frankly mopping his forehead. Dianna decided against any more questions. Gaston would naturally be hopelessly biased, having been born and brought up in the shadow of the family, and after all she would rather judge for herself. One inquiry only she permitted herself: "The family of Saint Hubert, are they of the old or the new _noblesse?"_ "Of the old, Madame," replied Gaston quickly.