As soon as he disappeared a new plan came to Kitty. She put it into execution at once, on the basis that yonder taxicab was an enemy machine. She left her retreat and walked boldly down the street, her eyes alert for the least suspicious sign. If she could make the entrance before they suspected the trick, she could obtain help before Johnny Two-Hawks made the south turn. She reached her objective, pushed through the revolving doors, and turned. Dimly she could see the taxi driver; but he appeared to be dozing on the seat.

As a matter of fact, one of the three men in the taxi recognized Kitty, but too late to intercept her. Her manoeuvre had confused him temporarily. And while he and his companions were debating, Kitty had time to summon Cutty's man from Elevator Four.

“Step into the car!” he roughly ordered, after she had given him a gist of her suspicions. He turned off the lights, stepped out, and shut the gates with a furious bang. “And stick to the corner! I'll attend to the other fool.”

He rushed into the street, his automatic ready, eyed the taxicab speculatively, wheeled suddenly, and ran south at a dog-trot. He rounded the south corner, but he did not see Hawksley anywhere. The dog-trot became a dead run. As he wheeled round the corner of the parallel street he almost bumped into Hawksley, who had a policeman in tow.

“Officer,” said the man with the boy's face, “this is Federal business. Aliens. Come along. There may be trouble. If there should be any shooting don't bother with the atmosphere. Pick out a real target.”

“Anarchists?”

“About the size of it.”

“Miss Conover?” asked Hawksley.

“Safe. No thanks to you, though. I'd like to knock your block off, if you want to know!”

“Do it! Damned little use to me,” declared Hawksley, sagging.