It was in the year after this terrible downfall of the Northern Kingdom that Alfred made his first campaign. He was now nineteen, and had just married his Mercian bride, Ealhswith, the daughter of Alderman Ethelred. The enterprise in which he was engaged was one of a very typical character—a dozen expeditions with the same unfortunate end could be cited from the English and Frankish annals of the third quarter of the ninth century. A large Viking host had entered Mercia and forced its way up the Trent as far as Nottingham. King Burgred sent to Wessex to beg the aid of his brother-in-law Ethelred, who marched to his help, taking his brother Alfred with him as second in command. The united hosts of the two English realms were too large for the Vikings to dare to face them in the open field. They stockaded themselves in a great camp on the banks of the Trent and waited to be attacked. The landsfolk laid siege to the stronghold, and strove to storm it; but they utterly failed to break their way in. After lying some time before it, they dispersed in despair: Ethelred and Alfred went home: the unfortunate Burgred then asked for terms, and got rid of the Vikings for a short space by paying them a large tribute. The Danes returned to York, lay there for one year, and then threw themselves upon the East Angles. They slew King Edmund, “the Martyr,” scattered his army, sacked the towns and monasteries of Norfolk and Suffolk, and made themselves masters of the whole realm (870). Next year the turn of Wessex came: the Mercians had at least bought two years of respite by the treaty of Nottingham. Marching from East Anglia the “Grand Army” of the Vikings crossed the Thames, seized Reading, and stockaded a great camp in the angle between the Kennet and the Thames to serve as a base for their ravaging parties. But in spite of a dozen disasters suffered during the last forty years at the hands of the same enemy, the spirit of Wessex was not yet quenched. Its shire-levies loyally answered King Ethelred’s call, and gathered in great strength opposite the Danish camp. The Berkshire fyrd even succeeded in bringing to bay and destroying at Englefield a large plundering party headed by a Jarl. But the main body of the Vikings was not so easily disposed of. A general attack on their stronghold, headed by Ethelred and Alfred, proved wholly unfortunate. When the assailants had wearied themselves in vain attempts to hew their way through the stockade, and drew off repulsed, the enemy made a sudden sortie: “bursting out of the gates like wolves,” they fell on the shattered ranks of the men of Wessex, drove them away, and held possession of the battle spot. Thinking apparently that the English were disposed of so far as further fighting was concerned, the Vikings now started for a raid westward along the Thames valley: the camps at Sinodun and Pusey, both large and formidable structures, possibly represent their halting-places on the first and second nights of