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THE VAN DORN PROTECTIVE SERVICES operators guarding the roof of the armory had kept a sharp eye on the door from the stairs, as instructed by Joseph Van Dorn, though every cheer that went up had drawn their attention to the parade ground and bleachers below and the next machine descending from the sky.

Now they lay unconscious at Harry Frost’s feet, surprised by hammer blows of his fists after he sprang not from the stairs’ penthouse but from the elevator’s, where he had hidden since dawn.

Frost steadied a Marlin rifle on a square stone between two notches in the parapet and waited patiently for Josephine’s head to completely fill the circle of his telescopic sight. She was coming straight at him, preparing to circle the armory as required by the rules, and he could see her through the blur of her propeller. This might not be as satisfying a kill as strangling her, but the Van Dorns had left him no opportunity to get close. And there were times a man did best to take what he could get. Besides, the telescope made it seem as if they were facing each other across the dinner table.

THE INSTANT ISAAC BELL saw the stone notches in the armory’s crenellated parapet, he rammed his control wheel forward as hard as he could and made the Eagle dive. That roof was precisely where he would lay an ambush. The rules of the race guaranteed that Frost’s victim would have to fly so close, he could hit her with a rock.

Driving with his right hand, he swiveled his Remington autoload rifle with his left. He saw a startled expression on Josephine’s face as he hurtled past her. Ahead, among the stone notches, he saw the sun glint on steel. Behind the flash, half hidden in shadow, the bulky silhouette of Harry Frost was drawing a bead on Josephine’s yellow machine.

Then Frost saw the American Eagle plummeting toward him.

He swung his barrel in Bell’s direction and opened fire. Braced on the solid roof of the armory, he was even more accurate than he had been from the oyster boat. Two slugs stitched through the fuselage directly behind the controls, and Bell knew that only the extraordinary speed of his dive had saved him when Frost underestimated how swiftly he would pass.

Now it was his turn. Waiting until his spinning propeller was clear of the field of fire, the tall detective triggered his Remington. Stone chips flew in Frost’s face, and he dropped his rifle and fell backwards.

Isaac Bell turned the Eagle sharply – too sharply – felt it start to spin, corrected before he lost control, and swept back at the armory. Frost was scrambling across the roof, leaping over the bodies of two fallen detectives. He had left his rifle where he had dropped it and was holding a hand to his eye. Bell fired twice. One shot shattered glass in the structure that housed the elevator machinery. The other nicked the heel of Frost’s boot. The impact of the powerful centerfire.35 caliber slug knocked the big man off his feet.

Bell wrenched the Eagle around again, ignoring the protesting shriek of wind in the stays and an ominous grinding sound that vibrated through the controls, and raced back at the red brick building to finish him off. Across the roof, the door of the stair house flew open. Soldiers with long, clumsy rifles tumbled through it and fanned out, forcing Bell to hold his fire to avoid hitting them. Frost ducked behind the elevator house. As Bell roared past, he saw the killer open a door and slip inside.

He looked down at the avenue in front of the building, saw that Josephine had alighted and that there was space for him. Down he went, blipping his motor. He hit the cobblestones hard, spun half around, recovered, and, when the tail skid had slowed him nearly to a stop, jumped down and ran up the front steps of the armory, drawing his

pistol.

An honor guard of soldiers in dress uniforms holding rifles at port arms blocked his way.

“Van Dorn!” Bell addressed their sergeant, a decorated man of action whose chestful of battle ribbons included the blue-and-yellow Spanish-American War Marine Corps Spanish Campaign Service Medal. “There’s a murderer in the elevator house. Follow me!”

The old veteran sprang into action, running after the tall detective and calling upon his men. The inside of the armory was an enormous cathedral-like drill space as wide as the building and half as deep. The coffered ceiling rose as high as the roof. Bell raced to the elevator and stair shafts. The elevator doors were closed, and the brass arrow that indicated its location showed that the car was at the top of the shaft.

“Two men here!” he ordered. “Don’t let him out if the car descends. The rest, follow me.”

He bounded up four flights of stairs, with the soldiers clattering behind, reached the roof, and stepped outside just as Joe Mudd’s red Liberator roared around the building, yards ahead of Sir Eddison-Sydney-Martin’s blue Curtiss Pusher.

Bell ran to the elevator house. The door was locked.

“Shoot it open.”

The soldiers looked to their sergeant.

“Do it!” he ordered. Six men pumped three rounds of rifle fire into the door, bursting it open. Bell bounded in first, pistol in hand. The machine room was empty. He looked through the steel grate floor. He could see into the open, unroofed car, which was still at the top of the shaft immediately under him. It, too, was empty. Harry Frost had disappeared.

“Where is he?” shouted the sergeant. “I don’t see anyone. Are you sure you saw him in here?”

Isaac Bell pointed at an open trapdoor in the floor of the car.

“He lowered himself down the traction rope.”

“Impossible. There’s no way a man could hold on to that greasy cable.”

Bell dropped into the elevator car and looked down through the trap. His sharp eyes spotted twin grooves in the grease that thickly coated the braided steel wire that formed the traction rope. He showed the sergeant.

“Where the heck did he get a cable brake?”

“He came prepared,” said Bell, climbing up the side of the car to run for the stairs.

“Any idea who he was?”

“Harry Frost.”

Source: www.allfreenovel.com
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