Help came in an unexpected fashion. The Swedish king, while the army was clamouring for the signal to attack, suggested that the gods should be consulted by lot, whether it was their will that Birka should be destroyed. "There are many great and powerful deities there," said he; "there also formerly a church was built, and even now the worship of the Great Christ is observed by many, and He is more powerful than any other god. We ought, then, to inquire first whether it is the divine will that we attack the place." Accordingly the lots were cast, and it was discovered that the auspices were not favourable for the assault; and thus Birka was spared. The arrival, therefore, of Ardgar was well timed, and he was not only welcomed by Herigar, but the Christians were strengthened in their adherence to the faith by his coming. Nor was it in Sweden only that the prospects of the missionaries brightened. In A.D. 847, Leutbert, bishop of Bremen, died. Anskar's own see of Hamburg was now reduced, by the desolating inroads of the Northmen, to four baptismal churches. It was therefore proposed that the see of Bremen should be annexed to the archbishopric of Hamburg, and, after the plan was matured, Anskar no longer found himself hampered by want of means from devoting all his energies to the wider planting of the faith. At the same time he was enabled to appoint a priest over the church at Sleswik, and from Horik, king of Jutland, he no longer experienced opposition in preaching the word amongst the people. This encouraged many who had been baptized at Hamburg and Doerstadt, but who had subsequently conformed to idolatrous practices, to publicly profess their adhesion to the Christian faith, and they rejoiced in the opportunity of joining in Christian fellowship. The trade also of Doerstadt prospered by the change; Christian merchants flocked thither in greater numbers, and with greater confidence, and thus helped forward the work of Anskar and his colleagues.