"What disturbances?"

"You cannot have forgotten the incident in the library."

"A patroller killed! Really, Captain!"

"And a second patroller killed this morning, my Lady, and a native as well. It is not very usual for natives to kill patrollers and here is one who has done it twice, and yet remains uncaught. Is he a lone hand? Is it an accident? Or is it all part of a carefully laid scheme?"

"Apparently you believe the last."

"Yes, I do. The murdering native had two accomplices. Their description is rather like that of our two stowaways."

"You never said so!"

"I did not wish to alarm Your Ladyship. You'll remember, however, that I told you repeatedly that they could be dangerous."

"Very welL What follows from all this?"

"What if the murders on Florina were simply side shows intended to distract the attention of the patroller squadrons while these two sneaked aboard our ship?"

"That sounds so silly."

"Does it? Why are they running away from Florina? We haven't asked them. Let us suppose they are running away from the patrollers since that is certainly the most reasonable assump tion. Would they be running to Sark of all places? And on a ship that carries Your Ladyship? And then he claims to be a Spatioanalyst."

Samia frowned. "What of that?"

"A year ago a Spatio-analyst was reported missing. The story was never given wide publicity. I knew, of course, because my ship was one of those that searched near space for signs of his ship. Whoever is backing these Florinian disorders has undoubtedly seized on that fact, and just knowing that the matter of the missing Spatio-analyst is known to them shows what a tight and unexpectedly efficient organization they have."

"It might be that the Earthman and the missing Spatio-analyst have no connection."

"No real connection, my Lady, undoubtedly. But to expect no connection at all is to expect too much of coincidence. It is an impostor we are dealing with. That is why he claims to have been psycho-probed."

"Oh?"

"How can we prove he isn't a Spatio-analyst? He knows no details of the planet Earth beyond the bare fact that it is radioactive. He cannot pilot a ship. He knows nothing of Spatioanalysis. And he covers up by insisting he was psycho-probed. Do you see, my Lady?"

Samia could make no direct answer. "But to what purpose?" she demanded.

"So that you might do exactly what you said you intended to do, my Lady."

"Investigate the mystery?"

"No, my Lady. Take the man to your father."

"I still see no point."

"There are several possibilities. At the best, he could be a spy upon your father, either for Florina or possibly for Trantor. I imagine old Abel of Trantor would certainly come forward to identify him as an Earthman, if for no other reason than to embarrass Sark by demanding the truth concerning this fictitious psycho-probing. At the worst, he will be your father's assassin."

"Captain!"

"My Lady?"

"This is ridiculous!"

"Perhaps, my Lady. But if so, the Department of Security is also ridiculous. You will recall that just before dinner I was called away to receive a message from Sark."

"Yes."

"I'his is it."

Samia received the thin translucent foil with its red lettering. It said: "Two Floriians are reported to have taken secret, illegal passage on your ship. Secure them immediately. One of them may claim to be a Spatio-analyst and not a Florinian native. You are to take no action in this matter. You will be held strictly responsible for the safety of these people. They are to be held for delivery to Depsec. Extreme secrecy. Extreme urgency."

Samia felt stunned. "Depsec," she said. "The Department of Security."

"Extreme secrecy," said the Captain. "I stretch a point to tell you this, but you have left me no choice, my Lady."

She said, "What will they do to him?"

"I cannot say for certain," said the Captain. "Certainly a suspected spy and assassin cannot expect gentle treatment. Probably his pretense will become partly a reality and he will learn what a psycho-probe is really like."