The New Guy In Moon Base Twelve — Tom Lichtenberg

They weren't exactly the crew the President had in mind when he announced his plan to build a permanent base on the moon so the Chinese wouldn't do it first, but there they were, a boring collection of peaceful, happy settlers who couldn't even get a decent reality TV show rating. Life was perfectly dull until the new guy arrived. Now if they could only find out who he was and where he'd come from.