Adrian Sommer stepped out the door of the unmarked plane and started down the steps, his two companions close behind him. The warmth was a distinct and welcome change from the 747’s overenthusiastic air-conditioning, and an even more welcome change from the January blizzards taking place five thousand-odd miles to the north. It was, he decided tiredly, precisely the right time to vacation in South America. Some day he would have to try it. A vacation might be nice. He’d asked that the reception committee be kept small, and for a wonder the Chilean government had taken him at his word. The man in military dress uniform waiting at the foot of the stairway stood there alone, with only a single stretch limousine waiting a discreet distance behind him on the tarmac. Such willing cooperation was a good sign. Sommer could only hope it would continue. “Welcome, Dr. Sommer,” the man awaiting him smiled as Sommer reached the tarmac.