Alfred the Great necessary, that each man keep carefully his oath and his pledge" which expresses a fundamental tenet of Anglo-Saxon law. Alfred devoted considerable attention and thought to judicial matters. Asser underscores his concern for judicial fairness. Alfred, according to Asser, insisted upon reviewing contested judgments made by his ealdormen and reeves and "would carefully look into nearly all the judgements which were passed [issued] in his absence anywhere in the realm to see whether they were just or unjust". A charter from the reign of his son Edward the Elder depicts Alfred as hearing one such appeal in his chamber while
Alfred the Great worship of Thor. The Danes broke their word and, after killing all the hostages, slipped away under cover of night to Exeter in Devon. Alfred blockaded the Viking ships in Devon and, with a relief fleet having been scattered by a storm, the Danes were forced to submit. The Danes withdrew to Mercia. In January 878 the Danes made a sudden attack on Chippenham, a royal stronghold in which Alfred had been staying over Christmas, "and most of the people they killed, except the King Alfred, and he with a little band made his way by wood and swamp, and