""Hmm," said Moisevitch, obviously quite unconvinced. "Seems odd to me that you, an astronomer, should be sent up to the Moon to look into an epidemic…Then do you know what TMA-1 means?” Miller seemed about to choke on his drink, but Floyd was made of sterner stuff. He looked his old friend straight in the eye, and said calmly: "TMA-1? What an odd expression. Where did you hear it?” "Never mind," retorted the Russian. "You can't fool me. But if you've run into something you can't handle, I hope you don't leave it until too late before you yell for help.”"