The horse leaped forward, galloping down the slope. Ahead he could see the Thracians closing in. Cato watched them intently as he struggled with his shield, swinging it round to cover his body. Then, at the last moment, he lowered the standard, like a lance, and made for the man to his right. The three men came together with a thud as a spear glanced off the shield. There was a clatter of weapons as Cato and the man to his right wildly exchanged spear thrusts and parries. The standard was never designed for such work and was unwieldy in Cato’s hand as he fought for his life. His chances of surviving were made worse by the need to keep glancing to his left and fending off the attacks of the other Thracian. Macro could see that his friend could not hold his own for much longer and savagely urged his horse on. Then there was a sharp cry of frustration as the standard lurched out of Cato’s fingers and fell into the grass. He snatched his hand back and fumbled for his sword as his opponent moved in closer to his unprotected side to deliver the fatal blow. At the last moment Cato thrust his shield into the face of the man to his left and threw himself under the upraised spear of the other assailant and inside his shield to grab at his cloak and tunic in a desperate attempt to unseat the Thracian. The two writhed, with Cato half out of his saddle, while the other Thracian worked his horse towards the prefect’s back to strike from the rear.

At the sound of Macro’s horse the second man hesitated and looked round, then instinctively swerved his mount round to face the unexpected threat. Macro held his shield up and hunched down so that it covered him up to his cheek. There was no time to think and he simply clamped his jaw shut and rode directly towards the man. Only at the last instant did the Thracian understand Macro’s intention and try to spur his horse out of the way. It was too late and Macro’s horse collided heavily. With a shrill whinny of terror the other horse was knocked off its feet and it fell on to its side. It rolled on to its back, legs kicking wildly in the air. The rider let out a cry of panic before the weight of the horse above him drove the breath from his lungs and crushed his chest and limbs.

Cato was still struggling with the other man, one arm scrabbling for purchase around his torso while the other grasped the wrist of his spear hand and fought to keep the point away from his body.

‘Hold on, lad!’ Macro shouted as he took control of his frightened mount which was trying to shy away from the fight.