Second night of two amber lights returning, flickering from exact fixed position. This time I brought a second witness.

Second night in a row.  Two amber lights, hovering in absolute fixed position over Paradise Valley -- the northern neighborhoods of Scottsdale.  Bright, faintly flickering, staying absolutely fixed in position over the neighborhood.  I asked a fellow-student to come from the drafting studio and have a look.  He saw the lights as well.  Having watched the lights the night before for twenty minutes I predicted that the second light, the one that appeared to be a little closer to us, would blink out in a minute or two, followed by the first light about a minute later.  We speculated what it might be, pointing out how it couldn't be an airplane and was really bright for a drone (and the color would be hard to make, being that drones presently shine LED lights) and other theories.  Then the lights did just as I predicted.  My friend asked how I knew it would do that, I said that it did the same thing last night.
Watched for their return for an hour.  Nothing.  Will watch tomorrow night, camera ready.  If they stay up there long enough, we'll chase them down with a car, get pictures under them.  This area has a long history with these lights.  They are back.  We'll try getting shots of them.