Within the precincts rose one of those vast mounds thrown up by Ethelfleda, lady of the Mercians, and daughter of the great Alfred, a century and a half earlier. It formed the kernel of the new stronghold, and surmounted by a lofty tower, commanded a wondrous view of the country around, from a height of some two hundred feet.

On the north-east lay the long line of the Chilterns; on the south-west, the Berkshire downs stretching towards Cwichelm's Hlawe, and the White Horse Hill; between the two lay the gorge of the Thames, and in the angle the fertile alluvial plain, chiefly filled at that time by a vast park or chase, or by forest or marsh land.

The Chilterns were covered with vast beech forests, the Berkshire downs were more bare.

There were three bastions to the north and two on the south; within the inner dyke or moat on the east was the "glacis," which sloped abruptly towards the river: the main entrance, on the west, was approached by a series of drawbridges, while beneath the tower a heavy portcullis defended the gateway.

Upon the keep stood two sentinels, who from the summit of their lofty tower scrutinised the roads and open country all day long, until they were relieved by those who watched by night. Beneath them lay the town with its moat, and earthen rampart in compass a good mile and more, joining the river at each extremity. Within the compass were eleven parishes, "well and sufficiently built," with one parish church in each of them, well constructed, and with chaplains and clerks daily officiating, so that people had no lack of spiritual provision.

Beyond, the roads stretched in all directions: the Lower Icknield Street ran by woody Ewelme along the base of the downs, towards distant Stokenchurch and Wycombe; while on the opposite side, it ran across the wild moor land through Aston and Blewbery to the Berkshire downs, where it joined the upper way again, and continued its course for Devizes. Our readers will know this road well by and by.

Another road led towards the hills, called "Ye Kynge's Standynge," where it ascended the downs, and joining the upper Icknield Street, stretched across the slopes of Lowbury Hill, the highest point on the eastern downs, where the remains of a strong Roman tower formed a conspicuous object at that date. Another road led directly to the west, and to distant Ffaringdune, along the southern side of the twin hills of Synodune.

Now we will cease from description and take up our story.

"Our lord looks ill at ease," said Malebouche, one of the sentinels on the keep, to Bardulf, his companion.

"As well he may on this day!"