"Don't drive any closer," said the voice harshly, "or you'll be destroyed!"

Calhoun said coldly, "Listen, my fine feathered friend! I'm from the Interstellar Medical Service. You get in touch with planetary health services immediately! Remind them of the Interstellar Medical Inspection Agreement, signed on Tralee two hundred and forty standard years ago. Remind them that if they do not cooperate in medical inspection that I can put your planet under quarantine and your space commerce will be cut off like that!

"No ship will be cleared for Weald from any other planet in the galaxy until there has been a health inspection! Things have pretty well gone to pot so far as the Med Service in this sector is concerned, but it's being straightened up. I'm helping straighten it! I give you twenty minutes to clear this! Then I am coming in, and if I'm not landed a quarantine goes on! Tell your health authorities that!"

Silence. Calhoun clicked off and poured himself another cup of coffee. Murgatroyd held out his cup for a refill. Calhoun gave it to him.

"I hate to put on an official hat, Murgatroyd," he said, annoyed, "but there are some people who demand it. The rule is, never get official if you can help it, but when you must, out-official the official who's officialing you."

Murgatroyd said "Chee!" and sipped at his cup.

Calhoun checked the course of the Med Ship. It bore on through space. There were tiny noises from the communicator. There were whisperings and rustlings and the occasional strange and sometimes beautiful musical notes whose origin is yet obscure, but which, since they are carried by electromagnetic radiation of wildly varying wave lengths, are not likely to be the fabled music of the spheres.

In fifteen minutes a different voice came from the speaker.

"Med Ship Aesclipus! Med Ship Aesclipus!"

Calhoun answered and the voice said anxiously: