009 - A glowing ember, lurking about

A glowing ember, lurking about the end of the cigarette in the ashtray was at first the only evidence that someone had been in the office. It wasn't until he sat down that he saw the envelope, the white corner sticking out from under the desk blotter. He knew before he pulled out the envelope what would be written on it, printed in block letters.

"Do not open unless you mean it."

He closed his eyes and listened to muffled music from club below and slipped the letter opener through the envelope without seeing what was written on the back.