As he was entering Jämtland, Horn received a letter from the king, where he was ordered to investigate the reports of treachery from the local people. In December the clergy and local representatives were summoned for questioning. Horn learned that a secret alliance had been made between the people of Jämtland and the Norwegians, ratified with the local communities' seals. Severe reprisals were feared, but in the end the people of Jämtland were ordered to hand over their weapon in order to prevent "future secret aid to the enemy". This relatively mild punishment was in stark contrast to the harsh treatment of the Scanian lands.