“What shall we do now, Rudy?” Jupiter asked. Usually Jupe was the leader in anything they did, but now Rudy, being older and knowing his way about the ancient palace, was definitely in charge.

“Get you to safety,” Rudy murmured. “That is all we can do. So we must go back and — ”

At that moment the door burst open. Electric lights blazed on. Two men in the scarlet uniforms of palace guards rushed in.

“Stay where you are!” they shouted. “You are under arrest! We have caught the American spies!”

There was a moment of great confusion. Rudy hurled himself at the two men.

“Elena!” he shouted. “Get them to safety! Leave me!”

“Come on!” Elena cried, darting to the window. “Follow me.”

Bob tried to move toward the window. As Rudy grappled with the first man, attempting to seize his legs, the second man got Jupiter by the collar. The two struggling groups fell, with Bob between them. Heavy bodies thudded down on top of him. As he fell, he hit his head again. The carpet softened the blow, but it was a solid thump.

For the second time, Bob blacked out.

BOB LAY with his eyes closed, listening to Jupiter and Rudy talk.

“Well,” Jupiter said gloomily, “here we are, caught like that cricket in the spider web. I never guessed there would be men on guard outside the door of our room.”

“Neither did I,” Rudy said, equally gloomy. “I thought that since it was empty they’d forget about it. Well, at least Pete and Elena got away.”

“But what can they do?” Jupiter asked.

“I don’t know. Maybe nothing, except tell our plight to my father and the others. It is doubtful that my father can rescue us, but he can go into hiding to avoid Duke Stefan’s vengeance.”

“Which leaves us and Djaro in the soup,” Jupiter muttered. “We came over here to help Djaro but we certainly have been washouts.”

“Washouts? I do not understand the word.”

“Flops. Failures,” Jupiter told him. “Look, I think Bob is waking up. Poor Records, he’s had two bad bumps.”

Bob opened his eyes. He was lying on a rude cot covered with a blanket. He blinked in the dim light. Slowly his eyes focused on a flickering candle, a stone wall beside him and a stone roof above. Across the room was a solid door with only a small peephole. Jupe and Rudy were bending over him. Bob sat up, his head throbbing.

“Next time I come to Varania, I’m going to wear a football helmet,” he said, and tried to smile.

“Good, then you’re all right!” Rudy exclaimed.

“Bob, do you remember?” Jupe asked urgently. “Think hard now.”

“Sure I remember,” Bob said. “Those guards busted into the room and you and Rudy tangled with them and I got knocked down and bumped my head. I remember that much. Now I guess we’re in jail someplace.”

“I don’t mean that,” Jupiter said. “Do you remember what you did with the silver spider? Sometimes if one bump gives you amnesia, another bump will bring back your memory.”

“No.” Bob shook his head. “It’s all still a blank.”

“Perhaps it is just as well,” Rudy said darkly. “Then Duke Stefan cannot force you to tell him anything.”

At that moment, keys rattled outside. The heavy iron door swung inward. Two men in the uniform of the Royal Guard tramped in, shining powerful electric lanterns at them. In their right hands they carried swords.

“Come,” growled one of the men. “Duke Stefan wants you in the room of questioning. On your feet. Walk between us. Try no tricks or it will be the worse for you.”

He waved his sword threateningly.

The boys got slowly to their feet. With one soldier ahead of them and one behind, they tramped out into a damp stone corridor. Behind them the corridor led downward into unguessed realms of darkness. Ahead of them it sloped upward. They went past other closed doors, and up a flight of stairs. At the top of the stairs, two more guards stood at attention.

The two men hustled the boys through a doorway into a long room lit with lanterns. Bob gave a little gasp and even Jupiter turned pale. They had seen this kind of room a couple of times in horror movies. It was a torture room dating from centuries ago. And it was real.

At one side was an ugly rack where a victim was tied to have his bones stretched by heavy weights. Beyond was a huge wheel to which a victim was tied to have his arms and legs smashed by hammers. There were other devices, made of massive timbers, which they preferred not to guess about. And in the center of the room was a tall figure of a woman made of metal. The figure was just a shell, and the front was hinged so it would open. It was open now. Inside were rusty spikes sticking straight out. The idea was that someone stood inside the shell of the Iron Maiden, as it was called, and the front half was slowly closed until those rusty spikes — but neither Jupe nor Bob cared to think about that.

“The room of questioning!” Rudy whispered, and his voice trembled a little. “I’ve heard of it. It dates back to the reign of Black Prince John, a bloody tyrant of the Middle Ages. It hasn’t been used since, that I know of. I think Duke Stefan had us brought here just to scare us. He wouldn’t dare use torture on us!”

Maybe Rudy was right, but just the same, the rack, the wheel, the Iron Maiden and other devilish devices made Bob and Jupe’s stomachs feel queer.

“Silence!” a guard roared at Rudy. “Duke Stefan comes!”

The guards at the door sprang to attention. Duke Stefan strode into the room, followed by Duke Rojas. On Duke Stefan’s face was a look of ugly pleasure.

“So the mice are in the trap!” Duke Stefan said to the three boys. “And now it is time for them to squeal. You are going to tell me what I want to know, or it will be the worse for you.”

The guards brought a chair from a corner, dusted it off, and placed it before the wooden bench where the boys were seated. Duke Stefan sat down and tapped his fingers on the chair arm.

“Ah, young Rudolph,” he said to Rudy. “So you are in this. It shall go hard with your father and your family, I promise you. Not to mention yourself.”

Rudy clamped his lips tightly and said nothing.

“And now you, my young Americans,” Duke Stefan purred. “I have you. At least I have two of you. I will not ask you why you are here in this country. The cameras you left behind in your flight tell us everything. They prove you are agents of the American government — spies! You came here to plot against Varania. But you have committed a greater crime than that. You have stolen the silver spider of Varania.”

He leaned forward, his face darkening.

“Tell me where it is,” he said, “and I will be easy with you. I will assume you are just young and foolish. Come, speak!”

“We didn’t steal it,” Jupiter said boldly. “Someone else stole it and hid it in our room.”

“So!” Duke Stefan said. “You admit you had it. That in itself is a crime. But I am tender-hearted. I feel sympathy for your youth and folly. Just tell me where it is — return it to me — and I will forgive you much.”

Bob waited for Jupiter to speak. Jupe hesitated. But he could see no harm in telling the truth.

“We don’t know where it is,” he said. “We haven’t any idea.”

“You defy me, eh?” Duke Stefan scowled. “Let the other one speak. If you wish mercy, my little mouse, tell where the silver spider is.”

“I don’t know,” Bob said. “I haven’t any idea.”

“But you had it!” Duke Stefan roared at them. “That you have admitted. So you know where it is. Did you hide it? Did you give it to someone? Answer or it will be the worse for you!”

“We don’t know where it went,” Jupiter said. “You can ask us all night, and we won’t be able to tell you anything else.”

“So. You are being stubborn.” Duke Stefan drummed his fingers on the arm of his chair. “We can cure that. We have instruments in this room that have made grown men, far braver than you, scream to be allowed to speak. How would you like to stand within the Iron Maiden there and have her slowly embrace you, eh?”