Now the big man set his hand on the pommel and vaulted into the saddle with a lightness that Bull admired hugely. Under the impact of that descending bulk the stallion crouched almost to the earth, but he came up again with a snort and a strangled neigh of rage.
"Are you ready?" called Dunbar, gathering the reins, and giving the string of his quirt another twist around his right hand.
One of his men had mounted his horse with a rope, the noose end of which was around Diablo's neck. This would serve as a pivot block to keep Diablo running in a circle. If he tried to run in a straight line the running noose would stop him and choke him down. He would have to gallop in a circle for his bucking, and to help keep him in that circle, the spectators now grouped themselves loosely in a wide rim.
