They got out of this dilemma by having the sons exchange names and Thorby found himself owner of a name he did not want and could not pronounce. Then they "ate."

The horrid green stuff was not only not fit to drink, but when Thorby inhaled, he burned his nostrils and choked. The Captain gave him a reproving glance.

After that they left. No good-bys, they just walked off. Captain Krausa said meditatively while proceeding like a sleepwalker through the riot of traffic, "Nice people, for fraki. Never any sharp dealing and absolutely honest I often wonder what one of them would do if I took him up on one of those offers. Pay up, probably."

"Not really!"

"Don't be sure. I might hand you in on that half-grown Losian."

Thorby shut up.

Business concluded. Captain Krausa helped Thorby shop and sight-see, which relieved Thorby, because he did not know what to buy, nor even how to get home. His foster father took him to a shop where Interlingua was understood. Losians manufacture all sorts of things of extreme complexity, none of which Thorby recognized. On Krausa's advice Thorby selected a small polished cube which, when shaken, showed endless Losian scenes in its depths. Thorby offered the shopkeeper his tokens; the Losian selected one and gave him change from a necklace of money. Then he made Thorby a present of shop and contents.

Thorby, speaking through Krausa, regretted that he had nothing to offer save his own services the rest of his life. They backed out of the predicament with courteous insults.

Thorby felt relieved when they reached the spaceport and he saw the homely, familiar lines of old Sisu.

When Thorby reached his bunkie, Jeri was there, feet up and hands back of his head. He looked up and did not smile.

"Hi, Jeri!"

"Hello, Thorby."

"Hit dirt?"

"No."

"I did. Look what I bought!" Thorby showed him the magic cube. "You shake it and every picture is different"

Jeri looked at one picture and handed it back. "Very nice."

"Jeri, what are you glum about? Something you ate?"

"No."

"Spill it."

Jeri dropped his feet to the deck, looked at Thorby. "I'm back in the computer room."

"Huh?"

"Oh, I don't lose status. It's just while I train somebody else."

Thorby felt a cold wind. "You mean I've been busted?"

"No."

"Then what do you mean?"

"Mata has been swapped."

Mata swapped? Gone forever? Little Mattie with the grave eyes and merry giggle? Thorby felt a burst of sorrow and realized to his surprise that it mattered.

"I don't believe it!"

"Don't be a fool."

"When? Where has she gone? Why didn't you tell me?"

"To El Nido, obviously; it's the only ship of the People in port. About an hour ago. I didn't tell you because I had no idea it was coming... until I was summoned to Grandmother's cabin to say good-by." Jeri frowned. "It had to come someday... but I thought Grandmother would let her stay as long as she kept her skill as a tracker."

"Then why, Jeri? Why?"

Jeri stood up, said woodenly, "Foster Ortho-Uncle, I have said enough."

Thorby pushed him back into his chair. "You can't get away with that, Jeri. I'm your 'uncle' only because they said I was. But I'm still the ex-fraki you taught to use a tracker and we both know it. Now talk man to man. Spill it!"

"You won't like it."

"I don't like it now! Mattie gone... Look, Jeri, there is nobody here but us. Whatever it is, tell me. I promise you, on Sisu's steel, that I won't make an uncle-and-nephew matter of it. Whatever you say, the Family will never know."

"Grandmother might be listening."

"If she is, I've ordered you to talk and it's my responsibility. But she won't be; it's time for her nap. So talk."

"Okay." Jeri looked at him sourly. "You asked for it. You mean to say you haven't the dimmest idea why Grandmother hustled my Sis out of the ship?"

"Huh? None... or I wouldn't ask."

Jeri made an impatient noise. "Thorby, I knew you were thick-witted. I didn't know you were deaf, dumb, and blind."

"Never mind the compliments! Tell me the score."

"You're the reason Mata got swapped. You." Jeri looked at Thorby with disgust.

"Me?"

"Who else? Who pairs off at spat ball? Who sits together at story films? What new relative is always seen with a girl from his own moiety? I'll give you a hint -- the name starts with 'T.' "

Thorby turned white. "Jeri, I never had the slightest idea."

"You're the only one in the ship who didn't." Jeri shrugged. "I'm not blaming you. It was her fault. She was chasing you, you stupid clown! What I can't figure out is why you didn't know. I tried to give you hints."

Thorby was as innocent of such things as a bird is of ballistics. "I don't believe it."

"It doesn't matter whether you do or don't... everybody else saw it. But you both could have gotten away with it, as long as you kept it open and harmless -- and I was watching too closely for anything else -- if Sis hadn't lost her head."

"Huh? How?"

"Sis did something that made Grandmother willing to part with a crack firecontrolman. She went to Grandmother and asked to be adopted across moiety line. In her simple, addled-pated way she figured that since you were adopted in the first place, it didn't really matter that she was your niece -- just shift things around and she could marry you." Jeri grunted. "If you had been adopted on the other side, she could have wangled it. But she must have been clean off her head to think that Grandmother -- Grandmother! -- would agree to anything so scandalous."

"But... well, I'm not actually any relation to her. Not that I had any idea of marrying her."

"Oh, beat it! You make me tired."

Thorby moped around, unwilling to go back and face Jeri. He felt lost and alone and confused; the Family seemed as strange, their ways as difficult to understand, as the Losians.

He missed Mata. He had never missed her before. She had been something pleasant but routine -- like three meals a day and the other comforts he had learned to expect in Sisu. Now he missed her.

Well, if that was what she wanted, why hadn't they let her? Not that he had thought about it... but as long as you had to get married some day, Mata would be as tolerable as any. He liked her.

Finally he remembered that there was one person with whom he could talk. He took his troubles to Doctor Mader.

He scratched at her door, received a hurried, "Come in!" He found her down on her knees, surrounded by possessions. She had a smudge on her nose and her neat hair was mussed. "Oh. Thorby. I'm glad you showed up. They told me you were dirtside and I was afraid I would miss you."

She spoke System English; he answered in it. "You wanted to see me?"

"To say good-by. I'm going home."

"Oh." Thorby felt again the sick twinge he had felt when Jeri had told about Mata. Suddenly he was wrenched with sorrow that Pop was gone. He pulled himself together and said, "I'm sorry. I'll miss you."

"I'll miss you, Thorby. You're the only one in this big ship that I felt at home with... which is odd, as your background and mine are about as far apart as possible. I'll miss our talks."

"So will I," Thorby agreed miserably. "When are you leaving?"

"El Nido jumps tomorrow. But I should transfer tonight; I don't dare miss jump, or I might not get home for years."

"El Nido is going to your planet?" A fantastic scheme began to shape in his mind.

"Oh, no! She's going to That Beta VI. But a Hegemonic mail ship calls there and I can get home. It is too wonderful a chance to miss." The scheme died in Thorby's brain; it was preposterous, anyhow -- he might be willing to chance a strange planet, but Mata was no fraki.