The king found the palace at Munich had been robbed of its chief treasures. It was a very handsome building. As he was being escorted through it, the king inquired, "Who was the architect of this building?" The guide replied, "No other than the Elector himself." "I wish," said the king, "I had this architect to send to Sweden." "That," said the guide, "the architect will take care to prevent." When the arsenal was examined they found the gun-carriages with no cannon in sight. Gustavus was like Cromwell, a shrewd detective himself, and he had the cellars and adjoining ground examined. He found the cannon concealed under the floor. The floor was partly raised up, and the king said: "Rise up from the dead and come to judgment." One hundred and forty pieces obeyed the summons. In one of the cannon was found thirty thousand gold ducats, which was a great help in paying off his soldiers. Gustavus greatly admired the magnificent city, which he called "a gold saddle on a bad horse," but felt that he must now push on, for he feared Wallenstein would throw a large part of his army between himself and his base of supplies. As soon as Wallenstein comprehended that, Bavaria being conquered, Gustavus would march to Vienna, he stirred himself. Gustavus learned that Wallenstein proposed to attack Nuremberg, which had shown the Swedish king such great favor and kindness. Maximilian entreated Wallenstein to come to his help, and signed papers of allegiance to this upstart general and would-be emperor. Concerning this Wallenstein said: "At last I forced my mortal enemy to implore my pardon and support. I am avenged of all the evil he has done me." Wallenstein now had sixty thousand troops with which to attack Nuremberg, while Gustavus had about twenty thousand with which to oppose him. Gustavus could easily have avoided an engagement and left Nuremberg to the fate of Magdeburg. He preferred to perish with the city rather than expose this Protestant stronghold to the severities of the Imperial army. He threw up entrenchments outside the wall, and placed his soldiers outside the city, so as not to inconvenience the inhabitants. The citizens came out with shovels and picks and assisted the soldiers, the women came with good food, so that in two weeks they had an entrenchment which would protect almost as well as a wall. In the meantime the authorities were out buying all the provisions possible to put the city in condition to stand a siege. Then the king had his officers organize and train the militia as to best methods of maintaining order, and fitting them to assist in protecting the city. Gustavus said: "Nuremberg is the apple of my eye, and I shall defend it to the best of my ability." The soldiers and citizens were in perfect harmony, and together made preparations to receive the rapidly approaching enemy.