Sam took off running. Rhydian waited until he’d crossed the rope line which Caleb had lain out on the sand in the school, then squeezed Shura, kicked the horse with his heels, and lashed the reins against his neck. Shura broke from a stand into a flat out gallop, and Rhydian found his head empty of his instructions, thinking about nothing but his breathing, the thud of hooves, and beat of Shura’s great heart underneath him. He was gaining, gaining… His feet left the stirrups at exactly the right