It still wanted five minutes to eight, when the preliminary instructions were declared to be complete.

"I will show you over the house and the offices," said Maitre Voigt, "but I must put away these papers first. They come from the municipal authorities, and they must be taken special care of."

Obenreizer saw his chance, here, of finding out the repository in which his employer's private papers were kept.

"Can't I save you the trouble, sir?" he asked. "Can't I put those documents away under your directions?"

Maitre Voigt laughed softly to himself; closed the portfolio in which the papers had been sent to him; handed it to Obenreizer.

"Suppose you try," he said. "All my papers of importance are kept yonder."

He pointed to a heavy oaken door, thickly studded with nails, at the lower end of the room. Approaching the door, with the portfolio, Obenreizer discovered, to his astonishment, that there were no means whatever of opening it from the outside. There was no handle, no bolt, no key, and (climax of passive obstruction!) no keyhole.

"There is a second door to this room?" said Obenreizer, appealing to the notary.

"No," said Maitre Voigt. "Guess again."

"There is a window?"

"Nothing of the sort. The window has been bricked up. The only way in, is the way by that door. Do you give it up?" cried Maitre Voigt, in high triumph. "Listen, my good fellow, and tell me if you hear nothing inside?"

Obenreizer listened for a moment, and started back from the door.

"I know! " he exclaimed. "I heard of this when I was apprenticed here at the watchmaker's. Perrin Brothers have finished their famous clock-lock at last--and you have got it?"

"Bravo!" said Maitre Voigt. "The clock-lock it is! There, my son! There you have one more of what the good people of this town call, 'Daddy Voigt's follies.' With all my heart! Let those laugh who win. No thief can steal MY keys. No burglar can pick MY lock. No power on earth, short of a battering-ram or a barrel of gunpowder, can move that door, till my little sentinel inside--my worthy friend who goes 'Tick, Tick,' as I tell him--says, 'Open!' The big door obeys the little Tick, Tick, and the little Tick, Tick, obeys ME. That!" cried Daddy Voigt, snapping his fingers, "for all the thieves in Christendom!"

"May I see it in action?" asked Obenreizer. "Pardon my curiosity, dear sir! You know that I was once a tolerable worker in the clock trade."

"Certainly you shall see it in action," said Maitre Voigt. "What is the time now? One minute to eight. Watch, and in one minute you will see the door open of itself."

In one minute, smoothly and slowly and silently, as if invisible hands had set it free, the heavy door opened inward, and disclosed a dark chamber beyond. On three sides, shelves filled the walls, from floor to ceiling. Arranged on the shelves, were rows upon rows of boxes made in the pretty inlaid woodwork of Switzerland, and bearing inscribed on their fronts (for the most part in fanciful coloured letters) the names of the notary's clients.

Maitre Voigt lighted a taper, and led the way into the room.

"You shall see the clock," he said proudly. "I possess the greatest curiosity in Europe. It is only a privileged few whose eyes can look at it. I give the privilege to your good father's son--you shall be one of the favoured few who enter the room with me. See! here it is, on the right-hand wall at the side of the door."

"An ordinary clock," exclaimed Obenreizer. "No! Not an ordinary clock. It has only one hand."

"Aha!" said Maitre Voigt. "Not an ordinary clock, my friend. No, no. That one hand goes round the dial. As I put it, so it regulates the hour at which the door shall open. See! The hand points to eight. At eight the door opened, as you saw for yourself."

"Does it open more than once in the four-and-twenty hours?" asked Obenreizer.

"More than once?" repeated the notary, with great scorn. "You don't know my good friend, Tick-Tick! He will open the door as often as I ask him. All he wants is his directions, and he gets them here. Look below the dial. Here is a half-circle of steel let into the wall, and here is a hand (called the regulator) that travels round it, just as MY hand chooses. Notice, if you please, that there are figures to guide me on the half-circle of steel. Figure I. means: Open once in the four-and-twenty hours. Figure II. means: Open twice; and so on to the end. I set the regulator every morning, after I have read my letters, and when I know what my day's work is to be. Would you like to see me set it now? What is to-day? Wednesday. Good! This is the day of our rifle-club; there is little business to do; I grant a half-holiday. No work here to-day, after three o'clock. Let us first put away this portfolio of municipal papers. There! No need to trouble Tick-Tick to open the door until eight tomorrow. Good! I leave the dial-hand at eight; I put back the regulator to I.; I close the door; and closed the door remains, past all opening by anybody, till to-morrow morning at eight."

Obenreizer's quickness instantly saw the means by which he might make the clock-lock betray its master's confidence, and place its master's papers at his disposal.

"Stop, sir!" he cried, at the moment when the notary was closing the door. "Don't I see something moving among the boxes--on the floor there?"

(Maitre Voigt turned his back for a moment to look. In that moment, Obenreizer's ready hand put the regulator on, from the figure "I." to the figure "II." Unless the notary looked again at the half- circle of steel, the door would open at eight that evening, as well as at eight next morning, and nobody but Obenreizer would know it.)

"There is nothing!" said Maitre Voigt. Your troubles have shaken your nerves, my son. Some shadow thrown by my taper; or some poor little beetle, who lives among the old lawyer's secrets, running away from the light. Hark! I hear your fellow-clerk in the office. To work! to work! and build to-day the first step that leads to your new fortunes!"

He good-humouredly pushed Obenreizer out before him; extinguished the taper, with a last fond glance at his clock which passed harmlessly over the regulator beneath; and closed the oaken door.

At three, the office was shut up. The notary and everybody in the notary's employment, with one exception, went to see the rifle- shooting. Obenreizer had pleaded that he was not in spirits for a public festival. Nobody knew what had become of him. It was believed that he had slipped away for a solitary walk.

The house and offices had been closed but a few minutes, when the door of a shining wardrobe in the notary's shining room opened, and Obenreizer stopped out. He walked to a window, unclosed the shutters, satisfied himself that he could escape unseen by way of the garden, turned back into the room, and took his place in the notary's easy-chair. He was locked up in the house, and there were five hours to wait before eight o'clock came.