The Doctor, at that moment, was having supper by himself. He would not be upstairs for quarter of an hour. Marjorie showed Lockhart and the lad to the big bedroom with the dancing fire upon the hearth. Dickson major had a nickel-plated revolver, of which he was very proud.

"If anything happens, sir," he said, "I can do him in with this."

Then Dickson major was put under the bed, where he lay, grasping his revolver, keen as mustard, glad to be in the mysterious business of which he had been told so little and in which his elder twin was so actively engaged.

A tear comes into my eye as I think of that quiet bedroom and those two poor conspirators waiting for von Vedal, doing their little best, such as it was.

There was a big, green curtain, running on rings, in an alcove of the bedroom. Behind this, the headmaster of Morstone kept a lot of clothes which he never wore and never even looked at. Here the ardent cripple, Lockhart, was ensconced.

There is something comic in the business—the schoolboy and the ferret-faced master hidden in this fashion. I think that all sinister tragedies have their bizarre element of comedy—comedy to change so swiftly into horror.

In twenty minutes the Doctor came up. He strode into the room with a firm step, carrying a brown leather bag, which he placed upon the table by the fire. Then he locked the door. He took off his coat, warmed his soft, pink hands at the fire, unlocked the bag, spread a mass of documents from it upon the table, and began to write steadily.

There was a round clock upon the mantelpiece which ticked incessantly. It was a quick and hurried tick that came from the clock, and sometimes it seemed to be accentuated, to be a race with Time; at others, it was slow as the death-watch.

The Doctor wrote on. He covered sheet after sheet with swift, easy writing. When each sheet was done, he blotted it and added it to the pile on his left hand.

He had written for three-quarters of an hour, and the hidden watchers had made no sound whatever, when the big man suddenly jumped up from the table. They heard his chair crush over the carpet; they heard him sigh deeply, as if with relief.