"I say, Caw," he said, "could you possibly get Mr. Lancaster something to drink? He's knocked up with the travelling, and it's a bitter night outside. I could do with something myself."

"Very good, sir," came the reply, without hesitation, and Caw went out, closing the door behind him.

"Now," whispered Bullard, and made straight for the writing table, taking from his pocket an instrument of shining steel.

But it was not needed. The deep drawer opened obediently, sweetly.

"Lancaster, we've got it first time!" He lifted out and placed the Green Box on the table. "The diamonds!" Lancaster got up with a jerk and shudder. "Quick! Look in the other drawers for the keys."

All the other drawers were locked.

"Then we must take the whole thing."

"Good Heavens! We can't do that! How can--"

Bullard darted to the door and listened. After a moment he turned the handle gingerly. Then he grinned.

"I'm hanged," said he, "but the artful Caw has locked us in!"

"He suspects us!"

"Can't help it." Bullard sped to the bay window and drew aside one of the heavy curtains.

"I've got it!" he exclaimed.

Christopher Craig had had a craze for things that worked silently and easily. Bullard lifted the heavy sash with scarce a sound.

"Switch off the lights and come here!" he ordered. "Don't fall over things and make a row."

When Lancaster joined him Bullard was leaning half out of the window, directing the ray from an electric torch on the ground below. An incessant murmuring came from the loch, filling their ears.

"Lancaster, could you drop that height?"

"Oh, G.o.d, no!"

"There's a great heap of gathered leaves there--see! Think! Six hundred thousand pounds!"

"No, no! If one of us got hurt--"

"Perhaps you're right. There's nothing for it but to drop the box and collect it when we get out. 'Sh! did you hear something just now?"

Lancaster started and caught his head a stunning blow on the sash. At the same time he inadvertently knocked the torch from the fingers of Bullard, who was going to flash it into the darkness behind them.

"Idiot!" muttered Bullard. "Don't move till I fetch the box." He stole across the floor, feeling his way.

Lancaster, nursing his head, waited--waited until a gasped expletive reached his ears--

"d.a.m.nation!" Then--"Quick! Close the window, draw the curtain!" The speaker blundered to the electric switch.

Fumblingly, Lancaster obeyed, then turned to face a blaze of light, Bullard, white with fury and dismay, and the writing table with nothing on it.

CHAPTER VI

Next moment, his wits in action again, Bullard made for the table, closed the deep drawer, and threw himself on an easy chair, hissing at the gaping Lancaster, "Sit down, you fool!"

Lancaster collapsed on the couch as Caw, bearing a salver with decanters, a syphon, and gla.s.ses, entered the room.

"Your doors open quietly enough," remarked Bullard.

"Yes, sir. Mr. Craig disliked unnecessary noise." He presented the salver to Lancaster, who mixed himself a brandy and soda with considerable splutter.

While he was doing so, Bullard produced from his breast pocket a pale-green folded paper--a hotel bill, as a matter of fact--and gaily waved it, crying--"You see, we have found it, Caw, without much trouble!"

"In your pocket, sir?"

"On this chair, which I was sitting on yesterday."

"Indeed, sir! Then you are quite satisfied, sir?"

"Perfectly. By the way, Caw--no, I'll take whiskey--are you aware that the stones in that pendulum over there are worth a couple of thousand pounds?"

"If you say so, sir."

"Are you interested in diamonds, Caw?"

"Very much, sir--from an artistic point of view, sir."

"Their value does not interest you?"

"It does not excite me, sir."

"A capital answer! You have seen Mr. Craig's collection?"

"Frequently, sir."

Bullard took a bundle of notes from his pocket. "I offer you ten pounds to guess correctly the value of the collection."

"Six hundred thousand pounds, sir.... Thank you, sir." With supreme stolidity Caw presented the salver as a waiter might do for his tip.

Though taken aback, the loser laughed. He took a long drink, and laughed again.

"Excuse me, sir," said Caw, "but my master is still in the house."

Lancaster started, and took a hasty gulp, spilling a little.