"Let the men practice with these, and remember that they must aim at the legs of the Romans. It is useless to shoot at either shields or armour. Besides, let each man make himself a spear, strong, heavy, and fully eighteen feet long, with the point hardened in the fire, and rely upon these rather than upon your swords to check their progress. Whenever you find broad paths of firm ground across the swamps, cut down trees and bushes to form stout barriers.

"Make friends with the Fenmen. Be liberal to them with gifts, and do not attempt to plant parties near them, for this would disturb their wildfowl and lead to jealousy and quarrels. However well you may learn the swamps, they know them better, and were they hostile might lead the Romans into our midst. In some parts you may not find dry land on which to build huts; in that case choose spots where the trees are stout, lash saplings between these and build your huts upon them so as to be three or four feet above the wet soil. Some of my people who know the swamps by the eastern rivers tell me that this is the best way to avoid the fen fevers."

Having seen that everything was arranged, Beric and his party returned to their camp. For some time the reports from the upper river stated that the Romans were doing little beyond sending out strong parties to cut timber. Then came the news that a whole legion had arrived, and that small forts containing some two hundred men each were being erected, three or four miles apart, on both sides of the Fen.

"That shows that all resistance must have ceased elsewhere," Aska said, "or they would never be able to spare so great a force as a legion and a half against us. I suppose that these forts are being built to prevent our obtaining cattle, and that they hope to starve us out. They will hardly succeed in that, for the rivers and channels swarm with fish, and now that winter is coming on they will abound with wildfowl."

"I am afraid of the winter," Beric said, "for then they will be able to traverse the swamps, where now they would sink over their heads."

"Unless the frosts are very severe, Beric, the ground will not harden much, for every foot is covered with trees and bushes. As to grain we can do without it, but we shall be able to fetch some at least down from the north. Indeed, it would need ten legions to form a line along both sides of the Fen country right down to the sea and to pen us in completely."

By this time the Iceni had become familiar with the channels through the swamps for long distances from their fastness, and had even established a trade with the people lying to the northwest of the Fen country. They learnt that the Romans boasted they had well nigh annihilated the Trinobantes and Iceni; but that towards the other tribes that had taken part in the great rising they had shown more leniency, though some of their principal towns had been destroyed and the inhabitants put to the sword.

A month later a fleet of boats laden with Roman soldiers started from Huntingdon and proceeded down the Ouse. Dead silence reigned round them, and although they proceeded nearly to the sea they saw no signs of a foe, and so turning they rowed back to Huntingdon. But in their absence the Iceni had not been idle. The spies from the swamps had discovered when the expedition was preparing to start, and had found too that a strong body of troops was to march along the edges of the swamps in order to cut off the Iceni should they endeavour to make their escape.

The alarm had been sounded from post to post, and in accordance with the orders of Beric the whole of the fighting men at once began to move south, some in boats, some in their little coracles, which were able to thread their way through the network of channels. The night after the Romans started, the whole of the fighting force of the Britons was gathered in the southern swamps, and two hours before daybreak issued out. Some five hundred, led by Aska, followed the western bank of the river towards Huntingdon, which had for the time been converted into a Roman city, inhabited by the artisans who had constructed the boats and the settlers who supplied the army; it had been garrisoned by five hundred legionaries, of whom three hundred had gone away in the boats.

The main body advanced against the Roman camp on the opposite bank, in which, as their spies had learnt, three hundred men had been left as a garrison. By Beric's orders a great number of ladders had been constructed. As upon the previous occasion the camp was surrounded before they advanced against it, and when the first shout of a sentry showed that they were discovered Beric's horn gave the signal, and with a mighty shout the Britons rushed on from all sides. Dashing down the ditch, and climbing the steep bank behind it the Iceni planted their ladders against the palisade, and swarming over it poured into the camp before the Romans had time to gather to oppose them. Beric had led his own band of two hundred trained men against the point where the wall of the camp touched the river, and as soon as they were over formed them up and led them in a compact body against the Romans.