Lansberg was exultant. "We've got them for once! And the goods on every essobee in the place."

The cars hummed smoothly through the broad streets, past the shabby-genteel apartment neighborhood. Back in the early sixties, some of these buildings had been high-priced hotels, but the Village had gone to pot since the seventies.

A few minutes later, the cab pulled up in front of an imposing looking building of slightly tarnished aluminum paneling. Brittain got out, paid his fare, and went inside.

As the cab pulled away, Karnes gave orders for it to be picked up a few blocks away, just in case.

The rest of the vehicles began to surround the building.

Karnes, meanwhile, followed Brittain into the foyer of the apartment hotel. It was almost a mistake. Brittain hadn't gone in. Evidently attracted by the footsteps following him, he turned and looked back out. Karnes wasn't more than ten feet away.

_Just pretend you live here_, thought Karnes, _and bully-boy will never know the difference_.

He walked right on up to the doorway, pretending not to notice Brittain. Evidently, the saboteur was a little fl.u.s.tered, not quite knowing who Karnes was. He, too, pretended that he had no suspicions.

He pressed a buzzer on the panel to announce himself to a guest.

Karnes noticed it was 523; a fifth floor b.u.t.ton.

The front door, inside the foyer, was one of those gadgets with an electric lock that doesn't open unless you either have a key to the building or can get a friend who lives there to let you in.

When Karnes saw Brittain press the buzzer, he waited a second and took a chance.

"Here," he said, fishing in his pocket, "I'll let you in." _That ought to give him the impression I live here._

Brittain smiled fetchingly. "Thanks, but I--"

Bzzzz! The old-fashioned lock announced that it was open. Karnes stopped fishing and opened the door, letting Brittain follow him in.

He stayed in the lead to the elevator, and pushed the b.u.t.ton marked "4."

"You getting off before four?" he asked conversationally.

"No."

The elevator slid on up to four without another word being said by either man.

Karnes was judging the speed of the elevator, estimating the time it took for the doors to open as they did so, and making quick mental comparisons with his own ability to climb stairs at a run. The elevator was an old one, and fairly slow--

When the doors slid open, he stepped out and began to walk easily down the hall toward the stairway. When the elevator clicked shut, he broke into a run and hit the stairway at top speed, his long legs taking the steps three at a time.

The stairway was poorly lit, since it was hardly ever used, and, at the fifth floor, he was able to conceal himself in the darkness as Brittain turned up the hall toward 523.

Karnes looked closely at his surroundings for the first time. There was a well-worn, but not ragged, nylon carpet on the floor, dull chrome railing on the stair bannisters, and the halls were lit by old-fashioned glo-plates in the ceiling. The place was inexpensive, but not cheap.

Having made sure that Brittain actually had entered 523, he stepped back toward the elevator in order to notify Lansberg.

A sudden voice said: "You lookin' for-a somebody, meester?"

Karnes turned. An elderly man with a heavy mustache and a heavy body stood partway up the stairs, clad in slacks and shirt.

"Who are you?" frowned Karnes.

"I'm Amati, the supratendent. Why?" The scowl was heavy.

Karnes couldn't take any chances. The man might be perfectly okay, but--

Lansberg's steps sounded, coming up the stairs. With him was a Manhattan Squad officer of the Police Department.

"Shhh, Mr. Amati. C'mere a minute," said the cop.

"Oh. Lootenant Carnotti. Whatsa--"

"Shhhhhh! C'mere, I said, and be quiet!"

"You know this man?" Lansberg asked the policeman softly, indicating Amati.

"Sure. He's okay."

Lansberg turned to the superintendent. "What do you know about the guy who just came in?"

Amati seemed to have realized that something serious was going on, for his voice dropped to a conspiratorial whisper. "I dunno. I don't-a see who it is. Whatsa goin' on, Lootenant Carnotti?"

"What about Apartment 523? Who lives there?" asked Karnes.

"Oh, them? Meester and Meeses Seigert. Artists. Sheesa paint pictures, heesa make statues." Then Amati's eyes widened knowingly. "Ohhh! You guys da Vice Squad, eh? I _theenk_ theresa someteeng fonny about them!"

Footsteps sounded coming down the stairs from above.

"We watched the indicator needle on the elevator door in the lobby, and I signalled the 'copters on the roof," Lansberg whispered.

The hallway began to fill quietly with police.

Lieutenant Carnotti a.s.signed one of the men to watch Amati, mainly in order to keep him out of the way, and Karnes led the men down the hall towards 523, guns drawn.

Karnes knocked boldly on the door.

"Yeah? Who is it?" asked someone inside.

Karnes pitched his voice a little lower than normal, and said: "It's-a me, Meester Amati, only me, the soopratendant."

The imitation wasn't perfect, but the m.u.f.fling effect of the door would offset any imperfections.

"Oh, sure, Mr. Amati. Just a sec." There was a short pause, filled with m.u.f.fled conversation, then somebody was unlocking the door.

Things began to happen fast. As the door came open, Karnes saw that it had one of those inside chain locks on it that permit the door to be opened only a few inches. Without hesitation, he threw his weight against the door. Lansberg was right behind him.