His first scheme of revenge on the house of Austria had indeed failed; but the purpose itself remained unalterable; the choice of means alone was changed. What he had failed in effecting with the King of Sweden, he hoped to obtain with less difficulty and more advantage from the Elector of Saxony. Him he was as certain of being able to bend to his views, as he had always been doubtful of Gustavus Adolphus. Having always maintained a good understanding with his old friend Arnheim, he now made use of him to bring about an alliance with Saxony, by which he hoped to render himself equally formidable to the Emperor and the King of Sweden. He had reason to expect that a scheme, which, if successful, would deprive the Swedish monarch of his influence in Germany, would be welcomed by the Elector of Saxony, who he knew was jealous of the power and offended at the lofty pretensions of Gustavus Adolphus. If he succeeded in separating Saxony from the Swedish alliance, and in establishing, conjointly with that power, a third party in the Empire, the fate of the war would be placed in his hand; and by this single step he would succeed in gratifying his revenge against the Emperor, revenging the neglect of the Swedish monarch, and on the ruin of both, raising the edifice of his own greatness.
But whatever course he might follow in the prosecution of his designs, he could not carry them into effect without an army entirely devoted to him. Such a force could not be secretly raised without its coming to the knowledge of the imperial court, where it would naturally excite suspicion, and thus frustrate his design in the very outset. From the army, too, the rebellious purposes for which it was destined, must be concealed till the very moment of execution, since it could scarcely be expected that they would at once be prepared to listen to the voice of a traitor, and serve against their legitimate sovereign. Wallenstein, therefore, must raise it publicly and in name of the Emperor, and be placed at its head, with unlimited authority, by the Emperor himself. But how could this be accomplished, otherwise than by his being appointed to the command of the army, and entrusted with full powers to conduct the war. Yet neither his pride, nor his interest, permitted him to sue in person for this post, and as a suppliant to accept from the favour of the Emperor a limited power, when an unlimited authority might be extorted from his fears. In order to make himself the master of the terms on which he would resume the command of the army, his course was to wait until the post should be forced upon him. This was the advice he received from Arnheim, and this the end for which he laboured with profound policy and restless activity.