The light behind the ice-cream store went out suddenly. Genero looked toward the back yard.
“Guess they’re finished,” he said.
“I wish
Genero chuckled. “Well, keep an eye on the bank for me, will you?” he said. He clapped the old man on the shoulder. “I’ll be seeing you.”
Whistling, he walked up the street past the ice-cream store, turned the corner, and moved out of sight.
The time was 12:00 midnight.
The truck behind the store now belonged to Chelsea Pops, Inc.
The three men who’d fastened the new signs into place went back into the store, and down into the basement, and then into the tunnel they’d dug across the back yard.
The tunnel was no makeshift job. They had, after all, been working on it for a very long time. It was high and wide, and shored up with thick wooden beams which braced the ceiling and the walls. It had been necessary to make a sturdy tunnel because men and equipment had been working aboveground all the while the tunnel was being dug. The deaf man had been certain they were deep enough to avoid any cave-ins, but he’d made the tunnel exceptionally strong anyway.
“I don’t want anyone dropping in on us,” he had punned intentionally, and then grinned with the other men and got back to work.
The construction work aboveground, the legitimate work that went into the building of the shopping center, had really been an excellent cover for the daylight digging of the tunnel. With all that noise and confusion on the surface, no one even once imagined that some of the noise was coming from
The interesting part of the job, the deaf man thought, was that their construction of the tunnel had kept pace with the legitimate construction of the bank. The construction aboveground was open to all viewers. Painstakingly, the deaf man had watched while the vault was being built, had watched while the all-important wiring box for the alarm system had been imbedded in the concrete floor of the vault and then covered over with another three-foot layer of concrete. The alarm, he knew, would be of the very latest variety. But he also knew there wasn’t an alarm system in the world which Rafe could not render useless provided he could get at the wiring box.
The men had proceeded to get at the wiring box. As the shell of the bank took form and shape around the impregnable vault, the tunnel drove relentlessly across the back yard and then under the vault itself, and finally into the concrete until the underside of the vault was exposed. A web of steel had been crisscrossed into the vault floor between layers of concrete. The steel was almost impregnable, the rods constructed of laminated layers of metal, the grain of one layer running contrary to the grain of the next. A common hack saw would have broken on those laminated steel rods in the first thirty seconds of sawing. And the crisscrossing web made the task of forcible entry even more difficult since it limited the work space. Set an inch apart from each other, crossed like a fisherman’s net, each laminated rod of steel became a separate challenge defying entry. The steel mat was like an army of die-hard virgins opposing an undernourished rapist. And beyond the mat, embedded in the second layer of concrete, was the wiring box for the alarm system. Assuredly, the vault was almost impregnable.
Well, almost is not quite.
The men had a long time to work. They used acid on the steel, drop by drop, eating away each separate rod, day by day, working slowly and surely, keeping pace with the shell of the bank as it grew higher over their heads. By the twenty-sixth of April they had cut a hole with a three-foot diameter into the mat. They had then proceeded to chip away at the concrete until they reached the wiring box. Rafe had unscrewed the bottom of the box and studied the system carefully. As he’d suspected, the system was the most modern kind, a combination of the open- and closed-circuit systems.
In an open-circuit alarm system, the cheapest kind, the alarm sounds when the current is closed. The closed-circuit system operates on a different electrical principle. There is always a weak current running through the wiring and if the wires are cut, the alarm will sound when that current is broken.
The combination system works both ways. The alarm will sound if the current is broken, and the alarm will also sound when contact is established.