As the commander spoke, the massive door to his office rolled back and
Tom, Roger, and Astro stepped in briskly, coming to stiff attention in
front of the desk.

"_Polaris_ unit reporting for duty, sir," said Tom. "Cadets Corbett,
Manning, and Astro."

"At ease," said Walters.

The three boys relaxed and glanced quickly at the governor who had
watched their entrance with interest. Walters came around in front of
the desk and gestured toward Hardy.

"Boys, I want you to meet Governor Hardy."

The three cadets nodded respectfully. They knew all about the governor's
achievements in establishing the first colony on Ganymede, and his
success with the first exploratory expedition to outer space.

"Sit down, boys," said Walters, indicating a near-by couch. "Governor
Hardy will explain things from here on in. Where is Captain Strong?"

"He said he'd be along in a few moments, sir," replied Roger.

"Well," said Walters, turning to Hardy, "no sense in beginning without
Steve. Only have to repeat yourself." He turned to Astro but not before
he saw a grimace of annoyance cloud the governor's face. "How are you
making out with your classroom studies, Astro?"