Aware of the three men, the truck slowed to a halt, shifted gears and pulled on its emergency brake. A moment passed as relays moved into action; then a portion of the loading surface tilted and a cascade of heavy cartons spilled down onto the roadway. With the objects fluttered a detailed inventory sheet.

“You know what to do,” O’Neill said rapidly. “Hurry up, before it gets out of here.”

Expertly, grimly, the three men grabbed up the deposited cartons and ripped the protective wrappers from them. Objects gleamed: a binocular microscope, a portable radio, heaps of plastic dishes, medical supplies, razor blades, clothing, food. Most of the shipment, as usual, was food. The three men systematically began smashing objects. In a few minutes, there was nothing but a chaos of debris littered around them.

“That’s that,” O’Neill panted, stepping back. He fumbled for his check-sheet. “Now let’s see what it does.”

The truck had begun to move away; abruptly it stopped and backed toward them. Its receptors had taken in the fact that the three men had demolished the dropped-off portion of the load. It spun in a grinding half circle and came around to face its receptor bank in their direction. Up went its antenna; it had begun communicating with the factory. Instructions were on the way.

A second, identical load was tilted and shoved off the truck.

“We failed,” Ferine groaned as a duplicate inventory sheet fluttered after the new load. “We destroyed all that stuff for nothing.”

“What now?” Morrison asked O’Neill. “What’s the next strategem on our board?”

“Give me a hand.” O’Neill grabbed up a carton and lugged it back to the truck. Sliding the carton onto the platform, he turned for another. The other two men followed clumsily after him. They put the load back onto the truck. As the truck started forward, the last square box was again in place.