Despite the flammable combination of kindling and pitch, the drizzle made it difficult to set fire to some of them but a handful caught quickly, crackling furiously. The moment they were well ablaze two soldiers holding a long pitchfork between them pierced the bundles and swung them back, took up the strain and then on a grunted signal heaved them in an arc over the rampart. The flames roared ferociously as they plummeted down through the darkness, struck the ground in a fiery explosion of sparks and rolled on a short distance before coming to rest, casting a wavering red loom across the surrounding area. Some fell short and rolled back into the ditch amongst the attackers picking their way across to the scarp, causing some to cry out in panic as they thrust themselves out of the path of the blazing faggots. Some were not so lucky and were seared by the flames and howled in agony. By the glow of the faggots Cato could see small groups of men glistening in the drizzle as they struggled up the slope with crudely made assault ladders.

He filled his lungs and shouted, ‘Loose javelins!’

The legionaries and Thracians stood up against the palisade and readied their throwing arms. The range was short and the iron points of the weapons angled down towards the wave of native warriors surging up the slope towards the fort. There was no need to aim and each man hurled his weapon forward with an explosive grunt. The lethal shafts, momentarily picked out by the fires below, flew through the air and plunged down amid the heaving mass of the enemy. Cato saw a man struck as he stood on the edge of the ditch to the right of the gatehouse, pierced through the stomach by the iron shaft at the head of the weapon. He doubled up, dropping his axe, and fell back, hands clutching the shaft.

More of the attackers went down. It was difficult to miss them as they clawed their way up towards the foot of the wall. Then the first of the ladder parties reached the ditch and carried their awkward burden down, across and up the other side. They planted the base on the sodden ground and swung the top of the ladder up against the palisade, close by the gatehouse. At once warriors swarmed up the rungs, urged on by a nobleman in a chain-mail vest, who was striking his sword and shield together in frenzied excitement. Cato turned to Macro and pointed down.

‘See him?’

Macro nodded.

‘Take him!’ Cato ordered, trusting to his friend’s far better talent with the javelin. For himself, he had never quite got over the danger he posed to his own side after once nearly impaling Macro with a javelin during his first combat on the Rhine frontier.