around waiting for me ever since.

I point out that the scope-trace of an Unidentified Flying Object will occasion a lot more remark than a normal departure even at midnight.

At this Ram smiles in an inscrutable Oriental manner and B gets nearly as cross as I do, seems she has mentioned this point before.

We have not gone into it properly when the cabin suddenly shifts through a right angle. B and I go sliding down the vertical floor and end sitting on a window. There is a jolt and a shudder and Ram mutters things in Hindi and then suddenly Up is nowhere at all.

B and I scramble off the window and grab fixtures so as to stay put. The stars have gone and we can see nothing except the dim glow over the instruments; then suddenly lights go on outside.

We look out into the hold of a ship.

Our ten-foot teardrop is sitting next to another one, like two eggs in a rack. On the other side is a bulkhead; behind, the curve of the hull; and directly ahead an empty space, then another bulkhead and an open door, through which after a few seconds a head pokes cautiously.

The head is then followed by a body which kicks off against the wall and sails slowly towards us. Ram presses a stud and a door slides open in the hopper; but the new arrival stops himself with a hand on either side of the frame, his legs trailing any old how behind him. It is Peter Yeng Sen who graduated the year I did my Field Work.

He says, Gopal, dear fellow, there was no need for the knocking, we heard the bell all right.

Ram grumbles something about the guide beam being miss-set, and slides out of his chair. Peter announces that we have only just made it as the deadline is in seven minutes time; he waves B and me out of the hopper, through the door and into a corridor where a certain irregular vibration is coming from the walls.

Ram asks what is that tapping? And Peter sighs and says The present generation of students has no discipline at all.

At this B brakes with one hand against the wall and cocks her head to listen; next moment she laughs and starts banging with her fist on the wall.

Peter exclaims in Mandarin and tows her away by one wrist like a reluctant kite. The rapping starts again on the far side of the wall and I suddenly recognize a primitive signaling system called Regret or something, I guess because it was used by people in situations they did not like such as Sinking ships or solitary confinement; it is done by tapping water pipes and such.

Someone found it in a book and the more childish element in College learned it up for signaling during compulsory lectures. Interest waning abruptly when the lecturers started to learn it, too.

I never paid much attention not expecting to be in Solitary confinement much; this just shows you; next moment Ram opens a door and pushes me through it, the door clicks behind me and Solitary confinement is what I am in.

I remember this code is really called Remorse which is what I feel for not learning when I had the chance.

However I do not have long for it, a speaker in the wall requests everyone to lie down as acceleration is about to begin. I strap down on the couch which fills half the compartment, countdown begins and at zero the floor is suddenly down once more.

I wait till my stomach settles, then rise to explore.

I am in an oblong room about eight by twelve, it looks as though it had been hastily partitioned off from a larger space. The walls are prefab plastic sheet, the rest is standard fittings slung in and bolted down with the fastenings showing.

How many of my classmates are on this ship? Remorse again as tapping starts on either side of me.

Discarding such Hypotheses as that Ram and Peter are going to hold us to ransom—which might work for me, since my Dad somehow got to be a millionaire, but not for B because her parents think money is vulgar—or that we are being carried off to found an ideal Colony somewhere—any first-year student can tell you why that won't work—only one idea seems plausible.

This is that Finals were not final and we are in for a Test of some sort.

After ten minutes I get some evidence; a Reading Machine is trundled in, the door immediately slamming shut so I do not see who trundles it.

I prowl round it looking for tricks but it seems standard; I take a seat in it, put on the headset and turn the switch.

Hypothesis confirmed, I suppose.

There is a reel in place and it contains background information on a problem in Cultural Engineering all set out the way we are taught to do it in Class. The Problem concerns developments on a planet got settled by two groups during the Exodus and been isolated ever since.

Well while a Reading Machine is running there is no time to think, it crams in data at full speed and evaluation has to wait. However my subconscious goes into action and when the reel stops it produces a Suspicion full grown.

The thing is too tidy.

When we were First Year we dreamed up situations like this and argued like mad over them, but they were a lot too neat for real life and too dramatic as well.

However one thing M'Clare said to us, and every other lecturer too, just before the Finals, was Do not spend time trying to figure what the examiner was after but answer the question as set; I am more than halfway decided this is some mysterious Oriental idea of a joke but I get busy thinking in case it is not.

The Problem goes like this:

The planet is called Incognita in the reel and it is right on the edge of the known volume of space, it got settled by two groups somewhere between three and three and a half centuries ago. The rest of the human race never heard of it till maybe three years back.

(Well it happens that way, inhabited planets are still turning up eight or ten a century, on account of during the Exodus some folk were willing to travel a year or more so as to get away from the rest).

The ship that spotted the planet as inhabited did not land, but reported to Central Government, Earth, who shipped observers out to take a look.

(There was a rumor circulating at Russett that the Terry Government might employ some of us on that kind of job, but it never got official. I do not know whether to believe this bit or not.)

It is stated the observers landed secretly and mingled with the natives unobserved.

(This is not physically impossible but sounds too like a Field Trip to be true.)

The observers are not named but stated to be graduates of the Cultural Engineering Class.

They put in a few months' work and sent home unanimous Crash Priority reports the situation is bad, getting worse and the prognosis is War.

Brother.

I know people had wars, I know one reason we do not have them now is just that with so many planets and cheap transportation, pressure has other outlets; these people scrapped their ships for factories and never built more.

But.

There are only about ten million of them and surely to goodness a whole planet gives room enough to keep out of each other's hair?

Well this is not Reasoning but a Reaction, I go back to the data for another look.

The root trouble is stated to be that two groups landed on the planet without knowing the others were there, when they met thirty years later they got a disagreeable shock.

I cannot see there was any basic difference between them, they were very similar, especially in that neither lot wanted anything to do with people they had not picked themselves.

So they divided the planet along a Great Circle which left two of the main land-masses in one hemisphere and two in another.

They agree each to keep to its own section and leave the other alone.

Twenty years later, trading like mad; each has certain minerals the other lacks; each has certain agricultural products the other finds it difficult to grow.

You think this leads to Co-operation Friendship and