Muller held out his hand. “Don’t let us be foolish, doctor. If you should find yourself terribly deceived, and I should have been the means of proving it, promise me that you will not be angry with me.”

Orszay pressed the offered hand with a deep sigh. He realised the other’s position and knew it was his duty to give him every possible assistance. “What is there for me to do now?” he asked sadly.

“You must see that all the patients are shut up in their cells so that the other attendants are at our disposal if we need them. Varna’s room has barred windows, I suppose?”

“Yes.”

“And I suppose also that it has but one door. I believe you told me that your asylum was built on the cell system.”

“Yes, there is but one door to the room.”

“Let the four other attendants stand outside this door. Gyuri will be inside with us. Tell the men outside that they are to seize and hold whomever I shall designate to them. I will call them in by a whistle. You can trust your people?”

“Yes, I think I can.”

“Well, I have my revolver,” said Muller calmly, “and now we can go.”

They left the room together, and found Gyuri waiting for them a little further along the corridor. “Aren’t you well, sir?” the attendant asked the doctor, with an anxious note in his voice.