He had time, but not much.

Gideon reached for a large glass knob and turned it carefully, but as quickly as he dared. He checked the dial again. Its needle careened farther to the right, fully in the red, but fairly stable. The lever on the left would activate the printing apparatus upstairs. He pulled it.

He needed an answer, and he needed it now.

The mighty computational engine strained and hummed, its gears and chains struggling against the request. At the rear a fuse fizzled and popped, but did not blow; a circuit objected with a fit of sparks, but held steady; a row of lights flickered, but did not go out.

Now Gideon looked up at the basement door. He stared at it. Hard. And he willed the system to work the way he told it to—please, just this once, if never again.

Three seconds passed. He knew because he counted.

Click.

Whir.

A blue-green glow sparked to life on the machine as a thin line of watery light pooled through the crack where the bottom of the door met the top stair.

“Yes,” Gideon breathed, but he did not smile. Turning on the apparatus was not the hard part. It was the first hard part.

The printer was far too large to share the basement with its companion device, which occupied two-thirds of the downstairs floor space. Ordinarily this was a source of great irritation for Gideon, who would’ve been much happier to have everything in one room, or at least on one level, preferably at a quarter of the present size. But just this once, it was a good thing.

So long as everything worked. And sometimes, it didn’t.

The lines, wires, tubes, and lumpily soldered joints that connected the two machines were strung through holes in the ceiling and floor, carrying more information at a greater speed than any such wires were ever expected to bear. They twitched, sparked, and jerked as electricity surged from the master device, depositing Gideon’s answer into the printer’s circuits, where the information sorted and arranged itself.

And then the printing apparatus began to translate the electric and magnetic impulses from the mechanical brain in the basement onto paper.

The nimble, spindly lead keys clacked slowly at first as rows upon rows of them rallied for the task, pressed themselves against ribbons of ink, and banged down on the paper receipt with sticky gravitas. Then the rhythm rose in volume, the noise soaring into something loud and rumbling, like the gravelly grunt of a diesel engine.

A tremendous roll of paper, bought from the Washington Star-News, unspooled within the printer’s belly. The apparatus dutifully pressed its message on the newsprint, and through a slot that emptied into a basket it spit out paper covered with whatever the brain downstairs commanded.

He grabbed his grandfather’s coat off the back of a chair he never had time to sit in, and donned it with a fast hitch of his shoulders. He also seized a cast bronze plaque created as a gift by former president Abraham Lincoln—not for sentimental reasons or because the plaque was as valuable as the coat, but because it praised and identified Gideon’s greatest creation.

A series of heavy blows battered the door to the laboratory upstairs, but Gideon was finally smiling. He already had a plan—plans were never the problem. Time to execute them was more often the difficulty.

He dashed up the stairs in a hurried tiptoe that muffled his steps, opening the basement door with care to keep it from squeaking.

Whoever was trying to get inside through the reinforced main door had discovered his folly, or so the scientist assumed. That particular portal was lined with lead, and fastened to the wall with hinges made to hold a firehouse door.

Gideon checked the paper basket and said, “Excellent!” Before his eyes, the basket filled and then overflowed with a billowing flutter as the paper kept coming, covered with facts and figures of such outstanding volume that it surprised even the man who’d demanded them, knowing the answer would not be brief. And knowing it would not be good.

Apart from the printer’s clatter, he heard only silence.

The intruders had given up on the door, but it wouldn’t take them long to come around the side and realize there was another way into the office.

Crash.

Not long at all.

The breaking glass of his office window was followed by the scrape of an arm, cleaning out the frame and pushing the shards to the floor. After this came the crush of feet on the scattered fragments, and the grinding sound of heels turning the glass to dust.

Gideon picked up an armful of paper and scanned it. His eyes widened.

A man called out, “This way! I see him!”

Without lifting his attention from the printout, Gideon kicked the office door shut, then twisted the lock. It wouldn’t hold forever—not nearly as long as the main entrance. But he needed more time. The printing apparatus wasn’t finished. It spewed its contents without pause, flinging more and more and more still into the basket, faster than Gideon could empty it.

The heavy thump of a big man’s body shoved hard against the side door. Then three shots—something high-caliber, something that could punch holes in a body or blow away a lock. The fastener held through the fourth round. Gideon was not dealing with the world’s greatest sharpshooter.

A booted foot kicked the door open with a bang.

The printing apparatus wasn’t finished yet, but Gideon told himself that this much would suffice—it was enough to give him his answer, and, if he was very lucky, it might even be enough to make his case.

The stacks of numbers were so fresh they smeared ink across his palms as he hurriedly seized them and bundled them together. In the office doorway, a man with a red bandana over his face and a gun in his hand shouted, “Get away from that machine!”

Irritated at the interruption, Gideon tore off the printed paper and gave its dangling, still-growing edge a rueful look before hefting the bulk of the printout. He crushed it in his arms, holding it between himself and the gunman.

In the brief pause that followed, he let Lincoln’s plaque slip quietly from his grasp, hidden by the crinkled, fluffy mass of wadded paper.

It fell.

And at the moment the plaque landed atop the printer’s console, Gideon flung himself behind a table and used his hip to knock it over. He dropped down for cover as the gunman opened fire. Two shots plunked into the heavy oak, which banged against the scientist’s elbows as he twisted, rolled, and folded the paper into a more manageable mass. Meanwhile, someone fired another shot, maybe more. It was hard to tell them apart over the rattling industrial clank of the printer’s keystrokes.

A second set of footsteps joined the gunman, and two more bullets went wild. Maybe both of them were terrible shots. Something to keep in mind, but it didn’t mean he could disregard them. They only needed one lucky shot between them.

“Back there!” The first man pointed. The upended table rocked again as another volley dug a row of deep, splintering holes.

Behind the incessant clatter of the still-pounding printer keys, he thought he could hear the intruders reloading. Even if it was his imagination, it was only a matter of time before they fired again. He needed a way out.

Several plans presented themselves from his vantage point. He sorted and prioritized them according to likely cost versus success rates.

The men stood between him and the stairwell door, but that was fine. He didn’t want to lead them down there anyway.

No. Behind him. The trapdoor to a storage cellar. That’d be a better option. It had once been part of the basement, before the basement had been finished out for Gideon’s work. The old hospital was a rabbit warren of such places, and he knew them all, having studied the blueprints before establishing his professional headquarters.

Of course, the cellar’s exterior door may or may not have been barred from outside, closed up fast against storms or burglars. There was always the chance that choosing this escape route would render him a fish in a barrel, but he ran the odds in his head and was reassured. Despite the risk, this was his best chance, both for preserving his equipment and for escaping the facility unseen.

Gideon jammed the unwieldy bundle of paper under his arm and glanced about for something to tie it with. Nothing obvious presented itself, so he dropped that idea. He’d have to carry it unsecured. A little noisy, and a little inconvenient, but not impossible.

“Is this the Fiddlehead?” one of the men shouted to the other over the cacophony of pounding keys.

“I don’t know! What does it look like?” came the uncertain reply, meaning they hadn’t yet seen the strategically relocated plaque.

Behind a counter over to his right, Gideon spied a jar of aluminum powder. His eyes narrowed, swiftly scanning the room until he remembered that the potassium chlorate was in the cabinet behind it.

“Science to the rescue,” he mumbled as he scooted on his knees and one hand—the other clasping the wadded sheaf of paper against his chest—across the floor and toward the aluminum.

The intruders must have heard him … maybe only a rustle of his old coat and the fast scrape of his boots as he scrambled out of the way, but they fired in that direction anyway, aiming wherever they guessed he might be heading.

They didn’t hit too close. The noise from the printing apparatus disoriented them. Sometimes Gideon forgot how unsettling it could be to people who weren’t accustomed to it.

He ignored it, fully and happily embracing the sound as cover as he knocked over a chemistry set on a repurposed tea tray. More confusion. More gunshots. But here was the aluminum. He’d have to stand for just a second to get the chlorate.

He put the printout down by his leg. He’d need both hands for this.

He closed his eyes and mentally checked the layout of the cabinet; he knew everything in it, every bottle on every row. Positioning himself as close to the right spot as possible, he counted back from three … two … one … and reached up to pop open the small door, hoping like hell that the morons with the guns wouldn’t shoot up the contents and blow them all to Maryland.

He nicked the bottom edge with a fingernail and the metal door flipped open. With a turn of his wrist, he seized the potassium chlorate without looking, simply trusting his memory.