It now appeared how completely the Emperor had sacrificed his authority, in surrendering to another the supreme command of his troops. Indifferent to Maximilian's entreaties, and deaf to the Emperor's repeated commands, Wallenstein remained inactive in Bohemia, and abandoned the Elector to his fate. The remembrance of the evil service which Maximilian had rendered him with the Emperor, at the Diet at Ratisbon, was deeply engraved on the implacable mind of the duke, and the Elector's late attempts to prevent his reinstatement, were no secret to him. The moment of revenging this affront had now arrived, and Maximilian was doomed to pay dearly for his folly, in provoking the most revengeful of men. Wallenstein maintained, that Bohemia ought not to be left exposed, and that Austria could not be better protected, than by allowing the Swedish army to waste its strength before the Bavarian fortress. Thus, by the arm of the Swedes, he chastised his enemy; and while one place after another fell into their hands, he allowed the Elector vainly to await his arrival in Ratisbon. It was only when the complete subjugation of Bohemia left him without excuse, and the conquests of Gustavus Adolphus in Bavaria threatened Austria itself, that he yielded to the pressing entreaties of the Elector and the Emperor, and determined to effect the long-expected union with the former; an event, which, according to the general anticipation of the Roman Catholics, would decide the fate of the campaign. Gustavus Adolphus, too weak in numbers to cope even with Wallenstein's force alone, naturally dreaded the junction of such powerful armies, and the little energy he used to prevent it, was the occasion of great surprise. Apparently he reckoned too much on the hatred which alienated the leaders, and seemed to render their effectual co-operation improbable; when the event contradicted his views, it was too late to repair his error. On the first certain intelligence he received of their designs, he hastened to the Upper Palatinate, for the purpose of intercepting the Elector: but the latter had already arrived there, and the junction had been effected at Egra. This frontier town had been chosen by Wallenstein, for the scene of his triumph over his proud rival. Not content with having seen him, as it were, a suppliant at his feet, he imposed upon him the hard condition of leaving his territories in his rear exposed to the enemy, and declaring by this long march to meet him, the necessity and distress to which he was reduced. Even to this humiliation, the haughty prince patiently submitted. It had cost him a severe struggle to ask for protection of the man who, if his own wishes had been consulted, would never have had the power of granting it: but having once made up his mind to it, he was ready to bear all the annoyances which were inseparable from that resolve, and sufficiently master of himself to put up with petty grievances, when an important end was in view.