When the campaign against the Wilkina men was ended, Dietrich and his army returned to Bern, leaving Wildeber in Hungary to ascertain whether Wittich were really dead, or whether he still required his companions' aid. Wishing to penetrate unrecognized into the enemy's camp, Wildeber slew and flayed a bear, donned its skin over his armor, and, imitating the uncouth antics of the animal he personated, bade the minstrel Isung lead him thus disguised to Hertnit's court. [Sidenote: Wittich rescued by Wildeber.] This plan was carried out, and the minstrel and dancing bear were hailed with joy. But Isung was greatly dismayed when Hertnit insisted upon baiting his hunting hounds against the bear; who, however, strangled them all, one after another, without seeming to feel their sharp teeth. Hertnit was furious at the loss of all his pack, and sprang down into the pit with drawn sword; but all his blows glanced aside on the armor concealed beneath the rough pelt. Suddenly the pretended bear stood up, caught the weapon which the king had dropped, and struck off his head. Then, joining Isung, he rushed through the palace and delivered the captive Wittich; whereupon, seizing swords and steeds on their way, they all three rode out of the city before they could be stopped. When they arrived in Bern they were warmly welcomed by Dietrich, who forced Heime to give the stolen Mimung back to its rightful owner. The brave warriors were not long allowed to remain inactive, however, for they were soon asked to help Ermenrich against his revolted vassal, Rimstein. They besieged the recalcitrant knight in his stronghold of Gerimsburg, which was given to Walther von Wasgenstein, while Wittich was rewarded for his services by the hand of Bolfriana, the Lady of Drachenfels, and thus became the vassal of Ermenrich. [Sidenote: Sibich.] The estates of Ermenrich were so extensive and so difficult to govern that he was very glad indeed to secure as prime minister a capable nobleman by the name of Sibich. Unfortunately, this Sibich had a remarkably beautiful wife, whom the emperor once insulted during her husband's absence. As soon as Sibich returned from his journey his wife told him all that had occurred, and the emperor's conduct so enraged the minister that he vowed that he would take a terrible revenge. The better to accomplish his purpose, Sibich concealed his resentment, and so artfully poisoned Ermenrich's mind that the latter ordered his eldest son to be slain. To get rid of the second prince, Sibich induced him to enter a leaky vessel, which sank as soon as he was out at sea. Then, when the prime minister saw the third son, Randwer, paying innocent attentions to his fair young stepmother, Swanhild, daughter of Siegfried and Kriemhild, he so maliciously distorted the affair that Ermenrich ordered this son to be hung, and his young wife to be trampled to death under the hoofs of wild horses.