So far John had done rather well. He had defied the king and survived. He extended his power and influence from Inverness to the English border. Had he died at this point he might be well remembered in the annals of Clan Donald. But he now took a fatal step, the consequences of which were to betray the essential weakness of his character. In England the Yorkists under Edward IV had chased the Lancastrian Henry VI from the country. Henry took refuge in Scotland, where he was well received. Edward at once sent the exiled earl of Douglas, the brother of the man murdered at Stirling, on a diplomatic mission to the Isles. At his court in the castle of Ardtornish John agreed to send his plenipotentiaries to London. This was a dangerous move, for while John's predecessors had contacts with the English, they had never committed themselves too far. Moreover, the English had never made any real attempt to assist the Lordship when it was in difficulties with the crown of Scotland. It should have been perfectly clear that Edward was trying to create a diversion. Sadly for the Lord of the Isles, it was not.