Conversation with a Visitor to Earth

The lights flickered a couple of times then there was a crackling sound, and the computer screen lit up, all on its own. I was sure it was turned off. Now this, as I looked at the old clock, eleven minutes past eleven, exactly.A crisp but not unpleasant sound, a voice came out of the ether."Hello, Earthling. How nice to meet you at last. I''ve been trying to reach you so far back in the past. Oh, ...