A soprano turbojet seemed to bear down on them, fading in and out as it 
tacked through the flora. The creepy afflatus Dopplered down a couple of notes 
as it came to a stop directly above them. They couldn't see more than the odd 
glint of colored light, picked up by whatever-it-was from the
distant mediatrons. A voice, flawlessly reproduced and just a hair too loud, 
came out of it: "Visitors are welcome to stroll through this park at any time. 
We hope you have enjoyed your stay. Please inquire if you need directions, and 
this unit will assist you."