“You said he only got three like mine?” Andy asked.

“That’s all, but some boy told him about another kid who won a cat at your carnival. He got the address of the other kid, and so did I: Billy Mota,39 Chelham Place.”

“Good work, Records,” Jupiter said. “If he is after the carnival cats, and the three he bought don’t turn out to be what he wants, he’ll have to go after that fourth cat. We’ll go to Billy Mota, too, but first we have to see what he does with the cats he has, and if he finds — ”

Andy broke in, “I think the last boy is leaving!” They watched as a solitary boy came out of the house still carrying a blue-and-white stuffed cat The tattooed man appeared at the front door, looked up and down the quiet street, then went back inside. The sound of the door lock snapping shut carried to the boys.

“Come on,” Jupiter whispered.

The grey day was growing dark early as they slipped up to the stucco house. At the living-room window they carefully raised their heads to look inside.

“There he is,” Bob whispered.

The swarthy tattooed man sat at the long table. On the table in front of him were three crooked cats, all exactly like the one Pete had lost. The tattooed man was examining each of them in turn.

“They’re my crooked cats, all right” Andy whispered.

“Look in the corner!” Jupiter said.

On the floor behind the table were two more cats — the stuffed cats that were not like Pete and Andy’s.

Jupiter said, “He’s thrown those aside! He does want only your carnival cats, Andy!”

“Shhhhhh!” Bob warned. Jupiter’s voice had risen as he realized that the tattooed man was really after the carnival cats. In the room, the man flung down the last cat, and stood up with a long, wicked knife gleaming in his hand.

Unable to move, the boys peered in the window as the tattooed man stood over the table with his long knife.

Suddenly, he began to slash at the first crooked cat with the knife. He cut into the second cat and the third. He stared at the crooked cats, and then began to fling the stuffing all over the table. With his hands moving frantically, he pawed over the stuffing and the pieces of covering.

Breathing hard, the tattooed man dropped his knife and slumped down in the chair behind the table. He looked with gloomy hatred at the hacked remains of the three crooked cats.

Bob whispered, “He didn’t find what he wants!”

“No,” Jupiter agreed, “but whatever he’s looking for is something inside the cats — or one of the cats. And that means it has to be inside the last missing cat! The one that Billy Mota has! If we hurry, we can get there before — ”

“Jupiter!” Andy cried. “He’s coming out!”

Inside the room the tattooed man had jumped up again. His angry eyes glanced all round the room. Then he reached for a hat on a chair.

“Quick, fellows, those bushes!” Jupiter muttered.

They dived for the cover of three thick hibiscus bushes and lay flat in their shadow. The front door closed, and the tattooed man came hurrying round the house. He didn’t even glance towards them, but strode past to the back alley. He vanished from their sight, and moments later they heard a car door open and close. The car engine started and roared away out of the alley.

“He’s gone to get that last crooked cat, First!” Bob guessed.

“Maybe we can catch up with him,” Andy said.

“On bicycles?” Bob pointed out. “Chelham Place is over five miles from here, Andy, near your carnival.” The boys all looked at each other in despair.

“He’ll get the last crooked cat,” Bob moaned. “And we can’t stop him.”

“I guess we can’t,” Jupiter agreed. He got up from under the hibiscus bushes and looked glumly at the small house. Then his eyes lighted up. “Or maybe we can! Fellows, look at those wires! The house has a telephone!” Without waiting for an answer, the First Investigator ran to the front door. It was locked.

“The windows!” Andy cried.

The carnival boy tried a living-room window. It was open! He pushed it up and the three boys tumbled inside.

“Find the telephone,” Jupiter urged. “Look everywhere!”

“There, Jupiter,” Andy pointed. “On the floor in that corner.“ Jupiter grabbed the receiver, lifted it to his ear, and listened. His face fell. “It’s not working.”

“Now what do we do?” Bob asked.

“I don’t know, Records,” Jupiter said glumly. “Perhaps if we rode over there as fast as we could we’d still be in time, if — ” he added lamely, “if no one was home when the tattooed man got there.”

“He’d just break in, Jupe,” Bob said.

Andy said, “There must be a public telephone somewhere near here, Jupiter!”

Jupiter groaned. “Of course, I should have — ”

The stocky First Investigator never finished what he was going to say. Outside the house, coming slowly closer, the boys all heard soft, careful footsteps. They froze in fright as they listened to the ominous steps. Bob crouched low and crept silently to a front window. He looked out, ducked and hurried back.

“The tattooed man! He’s coming back”

“The window,” Andy whispered urgently.

“No time, fellows,” Bob said, scared. “Quick, then, the other room!” Jupiter decided, hurriedly.

They fell over each other in their haste to get to the rear room. Andy reached it first, with Bob and Jupiter sprawling in behind him. It was a small, completely bare room, with shutters over the window that made it pitch dark. They quickly closed the door and stood behind it, holding their breath.

Outside in the living-room the outer door opened and closed.

There was a long silence.

Suddenly, a rasping voice laughed just outside the back room door. A low, nasty laugh.

“So, some smart lads, eh? Well, we’ll have to see that you don’t get too smart for your own good, boys.”

The three boys looked at each other in dismay. There was another laugh from outside the door.

“Thought I didn’t see you at the window, did you? Well, you’ll have to be a lot smarter than you are to fool me. I saw you, all right. A fine trio of fools you are. Didn’t even hear me park up the street. Well, you’ll have time to think about your foolishness, eh?”

There was the sound of a key turning in the lock in the door of the back room, and a heavy sliding noise as something solid dropped across the door— a metal bar.

“There, that should hold you,” the hoarse voice said. “But take a warning, smart boys. When you get out, stay away from me!”

There was no laugh this time. The boys heard footsteps going away and the slamming of the front door. A heavy silence descended over the small house.

“The window,” Jupiter said, undaunted. He felt his way in the dark to the window, pushed it up, reached to open the outside shutters and stopped.

“The window’s barred,” he cried. “This must have been a storeroom for the watchmaker who lived here!”

“Open the shutters and yell,” Bob said. They all yelled out into the grey, darkening sky. No one came. The small house was far from the street, and the houses across the back alley were some distance away on the next street After some minutes, Andy sat down on the floor and noticed something in the grey light from the window that they’d missed before. “Look! There’s a back door!”

Jupe rushed over to it. The back door was double-locked and solid.

“We’re stuck, fellows, and that tattooed man is sure to get the last crooked cat now!” Andy moaned. “We’re finished.”

“Perhaps not!” Jupiter said suddenly. “You forgot my new signal. Pete will see the red light, and the directional-signal will lead him to us.”

The stocky First Investigator took out the tiny instrument he had built and bent close over it.

“Help,” he said into it “Help.” The small instrument began to hum very low.

“It lights only on the receiving instrument,” Jupiter explained.