He was on a visit to Old Corbey, when the news arrived that a monk was much needed to accompany the Danish Harold to his native land, and that the abbot Wala had nominated him to the emperor as a fit person to be entrusted with the arduous mission. Summoned to the court, Anskar calmly but resolutely announced his willingness to go. In dreams and visions, he said, he had heard the voice of Christ himself bidding him preach the word to the heathen tribes: and nothing could induce him to shrink from the plain path of duty. In vain, therefore, on his return to the monastery, the brethren learning that he was about to resign all his hopes and prospects to preach amongst heathens and barbarians, warned, protested, and even mocked at him for his madness. Immoveable in his resolution to brave all risks, he began to prepare himself for his great enterprise by prayer and study of the Scriptures; and so deep was the impression made by his evident sincerity and self-devotion, that Autbert, steward of the monastery, and a man of noble birth, when every one else hung back, declared that he could not find it in his heart to desert his friend, and was resolved to become his companion. A foretaste of the difficulties that awaited them was experienced at the very outset. No one could possibly be prevailed on to accompany them as an attendant. The abbot himself shrank from interposing his authority, and they were fain to set out alone. Before starting, they had an interview with Louis, and received from him everything they were likely to need for their undertaking, in the shape of church vessels, tents, and books. From Harold, however, they met with but little encouragement, and neither he nor his nobles cared much for their company. On their arrival at Cologne, whence they were to sail up the Rhine to Holland, and so to Denmark, Bishop Hadebold bestowed upon them a ship with two cabins. The better accommodation promised in such a vessel induced Harold to share it with Anskar; and the engaging manners of the missionary gradually won his respect, and inspired him with an interest in his undertaking. On landing, Anskar fixed his head-quarters at Schleswig, and commenced the foundation of a school, purchasing, or receiving, from Harold, Danish boys, whom he tried to train, so as to form the nucleus of a native ministry. Two years thus passed away, and some impression seemed to have been made upon the people, when Autbert sickened, and was obliged to return to Corbey, where he died. Meanwhile the baptism of Harold, and still more his destruction of the native temples, was bitterly resented by his subjects. Before long a rebellion broke out, and the king was obliged to fly for refuge to a spot within the ancient Frisian territory, while Anskar finding it necessary to leave Schleswig, was consoled by an unexpected opportunity of commencing a similar work in Sweden.