However, the diet, surprised at not seeing their messenger return, conceived a slight suspicion. Whether he feared that his person was in danger so near Münster is not known, but fortunately for himself, the prince, that same evening, left Telgte for his castle of Iburg. The members of the diet, after long waiting, sent some men along the road to the capital to ascertain whether their messenger was within sight. These men returned, saying that the gates of Münster were closed and that no one was to be seen stirring. The fact was singular, not to say suspicious, and a troop of horse was ordered to make a reconnaissance in the direction of Münster. It was already late at night, so, having given the order, the members of the diet retired to their beds. The horse soldiers beat the country, found all quiet, withdrew some planks from a bridge over the Werse, between Telgte and Münster, to intercept the passage, and then returned to their quarters, for the night was bitterly cold. On surmounting a hill, crowned by a gibbet, they, however, turned once more and looked over the plain towards the city. A profound silence reigned; but a number of what they believed to be will-o'-the-wisps flitted here and there over the dark ground. As, according to popular superstition in Westphalia, these little lights are to be seen in great abundance at Yuletide, the horsemen paid no attention to them, but continued their return. These lights, mistaken for marsh fires, were in fact the burning matches of the arquebuses carried by those engaged in the sortie. On their return to Telgte, the horse soldiers retired to their quarters, and in half-an-hour all the inhabitants of the town were fast asleep. Meanwhile, the men of Münster advanced, replaced the bridge over the Werse, traversed the plain, and reached Telgte at two o'clock in the morning. They at once occupied all the streets, according to a plan concerted beforehand, then invaded the houses, and captured the members of the diet, clergy, nobles and commons. Three only of the cathedral chapter escaped in their night shirts with bare feet across the frozen river Ems. The Münsterians, having laid their hands on all the money, jewels, seals, and gold chains they could find, retreated as rapidly as they had advanced, carrying off with them their captives and the booty, but disappointed in not having secured the person of the prince. They entered the cathedral city in triumph on the morning of the 26th December, highly elated at their success, and nothing doubting that with such hostages in their hands, they would be able to dictate their own terms to the sovereign.