He no longer felt hungry. The tension in his guts was such that he knew he could not eat. He was thirsty, though. He would almost have given his guitar for hot coffee with cream in it.

At eight forty-five, a slim girl with long fair hair came walking along the street toward the van, and Walli's heart beat faster; but as she came closer he saw that she had dark eyebrows and a small mouth and an overbite. It was not Karolin.

At nine Karolin still had not appeared.

Go or stay?

If you ever sing that song again, you're fired.

Walli started the engine.

He moved forward slowly and turned the first corner.

He would need to be traveling fast to bust through the timber barrier. On the other hand, if he approached at top speed the guards would be forewarned. He needed to begin at normal speed, slow down a little to lull them, then stamp on the gas.

Unfortunately, not much happened when you stamped on the gas in this vehicle. The Framo had a 900 cc three-cylinder two-stroke engine. Walli thought maybe he should have kept the drums on board, so that their weight would give the van more impetus when it hit.

He turned a second corner, and the checkpoint stood ahead of him. About three hundred yards away, the road was blocked by a barrier that lifted to give access to a compound with a guardhouse. The compound was about fifty yards long. Another wooden barrier blocked the exit. Beyond that, the road was bare for thirty yards, then turned into a regular West Berlin street.

West Berlin, he thought; then West Germany; then America.

There was a truck waiting at the near barrier. Walli hurriedly stopped the van. If he got into a queue he was in trouble, for he would have little opportunity to build up speed.

As the truck passed through the barrier, a second vehicle pulled up. Walli waited. But he saw a guard staring his way, and realized his presence had been noted. In an attempt to cover up, he got out of the van, went around to the back, and opened the rear door. From there he could see through the windscreen. As soon as the second vehicle passed into the compound, he returned to the driving seat.

He put the van in gear and hesitated. It was not too late to turn around. He could take the van back to Joe's garage, leave it there, and walk home, his only problem to explain to his parents why he had been out all night.

Life or death.

If he waited now, another truck might come along and block his way; and then a guard might stroll along the street and ask him what the hell he thought he was doing, loitering within sight of a checkpoint; and his opportunity would be lost.

If you ever sing that song again . . .

He let out the clutch and moved forward.

He reached thirty miles an hour, then slowed down a little. The guard standing by the barrier was watching him. He touched the brake. The guard looked away.

Walli floored the accelerator pedal.

The guard heard the change in the engine note and turned around, wearing a slight frown of puzzlement. As the van picked up speed, he waved at Walli with a Slow down gesture. Pointlessly, Walli pressed harder on the pedal. The Framo gained pace lumberingly, like an elephant. Walli saw the guard's expression change in slow motion, from curiosity to disapproval to alarm. Then the man panicked. Even though he was not in the way of the van, he took three steps backward and flattened himself against a wall.

Walli let out a yell that was half war cry, half sheer terror.

The van hit the barrier with a crash of deforming metal. The impact threw Walli f

orward onto the steering wheel, which struck his ribs painfully. He had not anticipated that. Suddenly it was hard to catch his breath. But the timber bar fractured with a crack like a gunshot, and the van moved on, its pace only a little reduced by the impact.

Walli changed into first gear and accelerated. The two vehicles ahead of him had both pulled over for inspection, leaving a clear path to the exit. The other people in the compound, three guards and two drivers, turned to see what the noise was. The Framo picked up speed.

Walli experienced a rush of confidence. He was going to make it! Then a guard with more than average presence of mind knelt down and aimed his submachine gun.

He was just to one side of Walli's route to the exit. In a flash Walli realized he would pass the guard at point-blank range. He was sure to be shot and killed.

Without thinking, he swung the wheel and drove straight at the guard.

The guard fired a burst. The windscreen shattered, but to Walli's astonishment he was not hit. Then he was almost on top of the man. He was suddenly struck by the horror of driving a vehicle over a living human body, and he swung the wheel again to avoid the guard. But he was too late, and the front of the van hit the man with a sickening thump, knocking him down. Walli cried: "No!" The vehicle lurched as its front offside wheel rolled over the guard. "Oh, Christ!" Walli wailed. He had never wanted to hurt anyone.

The van slowed as Walli yielded to despair. He wanted to jump out and see if the guard was alive, and if so help him. Then gunfire broke out again, and he realized they were going to kill him now if they could. Behind him, he heard bullets hit the metal of the van.