Malcolm was sure that such a gathering could only have been summoned by Wallenstein upon some matter of the most vital importance, and he determined at all hazards to learn what was taking place, in order that he might enlighten Oxenstiern as to the real sentiments of the duke. Learning that the principal chamber in the castle had been cleared, and that a meeting of the officers would take place there in the evening, he told Thekla when he went home to his meal at midday that she must not be surprised if he did not return until a late hour. He continued his work until nearly six o'clock, the time at which the meeting was to begin, and then extinguishing his light, he made his way through the passages of the castle until he reached the council chamber, meeting with no interruption from the domestics, who were by this time familiar with his person, and who regarded him as one rising in favour with their master. He waited in the vicinity of the chamber until he saw an opportunity for entering unobserved, then he stole into the room and secreted himself behind the arras beneath a table standing against the wall, and where, being in shadow, the bulge in the hanging would not attract attention.