"Now, I'm goin' to show you round a bit, just to make it plain to you, before business begins for the day. I want you to see that you're not shut up in any quarter-inch cedar bandbox!"

He took her familiarly by the arm and led her to a door which, like the others, was covered with a plating of steel, and heavily locked and barred.

"Necessity, you see, is still the mother of invention," he said, as his finger played on the electric signal and released the obstructing door. "If we're goin' to do poolroom work, nowadays, we've got to do it big and comprehensive, same as Morgan or Rockefeller would do their line o' business. You've got to lay out the stage, nowadays, to carry on the show, or something'll swallow you up. Why, when we worked our last wire-tapping scheme with a hobo from St. Louis, who was rotten with money, we escorted him, on two hours' notice, into as neat a lookin' Postal-Union branch office as you'd care to see, with half a dozen fake keys a-goin' and twenty actors and supers helpin' to carry off the act. That's the up-to-date way o' doin' it! That's how a man like Penfield makes this kind o' graftin' respectable and aboveboard and just about as honest as bein' down in the Cotton Exchange!"

He was leading her down a narrow hallway, four feet wide, with unbroken walls on either side of them. At the end of this still another armored door led into a medium-sized room, as bald and uninviting as a dentist's waiting-room. Here he led her to two horizontal slits in the wall and told her to look down.

She did so, and found herself peering below, out into the well-stocked cigar-store, with a clear view of the entrance.

"That's the conning-tower of this here little floating fortress," chuckled MacNutt, at her shoulder. "This place you're in is steel-lined, and it would take three hours o' chisel and sledge work for anybody, from Eggers up to Braugham himself, to get inside, even though he did find us out, and even though he did escape the sulphuric bottles between the bricks. Each one o' these little slits is in line with a nice gilded cigar sign on the shop side of the wall. So no one down there, you see, knows who's eyin' them. We don't need any lookout, hangin' round the street-front and tippin' us off. Our man down below sizes up everyone who comes into that shop. If he's all right, the button's touched, and the white light flashes, and he gets through. If he's not, the cigar clerk rings another button, just under his counter, and we know what to do. If it's a case o' raid, our lookout flashes the red light through each o' the four rooms, with one push of the button, and then our second man throws back the switch and puts out every light in the buildin'. Then with another button push, the locks of every door are thrown shut, and they're four inches thick, most of them, and of good oak and steel. If the electricity should give out, here, you see, are the hand bolts, which can be run out at any time. Then we've got a little mercerized steel office, which you won't see, where our cashier and our sheet-writers work!"

Frank said nothing, but her still roving eyes took in each detail, bit by bit, as she warned and schooled herself to note and remember each door and room and passage.

"And now, in case you may be lookin' for it without my help, I'm goin' to take you down and show you the way out. We go through this little passage, and then we take up this steel trapdoor. It's heavy, you see! Then we go down this nice little grill-work iron ladder—don't pull back, I've got you!—and then we open this next very fine steel door—so; and here we are in what you'd call the safety-deposit vaults. It's a mighty handsome-lookin' safe, all laid in Portland cement, as you can see, but we're not goin' to tarry lookin' into that just now."

He was already feeling his way ahead of her, and she was still desperately struggling to impress each detail on her distracted mind.

"You see, if we want to get out, we go through this hall, and follow this little passageway, one end openin' up right under the sidewalk, in the refractin' glass manhole. Leading to the back, here, is a second passage, all barred, the same as the others. So, if our front is shut off, and they're hot on our trail, we shut everything after us as we go, and then open this neat little steel trapdoor, and find ourselves smellin' fresh air and five lines full of washin' from that Dago tenement just above us!"