Upon their arrival at Egra the gates were opened at their approach, and Colonel Butler, an Irishman who commanded the garrison, met Wallenstein as he entered, and saluted him with all honour.

Wallenstein was pleased to find that the disaffection which had spread so rapidly through the army had not reached Egra.
A few hours after he had entered the town Wallenstein received the news that an Imperial edict had been issued proclaiming him a traitor and an outlaw; he also learned that the corps under the Duke of Saxe-Lauenburg was within a day's march of Egra.

As soon as the duke retired to his apartments Leslie sought out Colonel Butler, and revealed to him the purposes of Wallenstein, and informed him of the Imperial order absolving the army from their allegiance to him.

The two men, with Lieutenant Colonel Gordon, another Imperialist officer, at once determined to capture Wallenstein and to hand him over as a prisoner to the emperor.
In the afternoon Leslie had an interview with Wallenstein, who told him of the near approach of the Dukes of Saxe-Lauenburg and Saxe-Weimar, and informed him of his plans for advancing from Egra direct into the heart of Bohemia.
The treacherous officer at once hurried away with the news to his two associates, and it was agreed that the near approach of the Saxons rendered it impossible for them to carry out their first plan, but that instant and more urgent steps must be taken.

That evening a banquet was given by Butler to Wallenstein and his officers.