Bright light flying without aircraft lights suddenly disappears

I saw an odd light traveling south to north - no landing lights. It appeared out of a clear sky and moved very fast and then nearly stopped before it disappeared. I thought it was weird. 10 minutes later my wife (Dermatology PA) joined me in the hot tub talking. After a few minutes I noticed what I thought was a similar bright light flying west to east above us in the sky. The sky was mostly clear with sparse wispy cloud cover. I told my wife to watch the light. We watched the light slip behind a quarter-sized cloud. We were waiting for it to emerge beyond the small cloud… But it never did. We were using a constellation of stars just on the other side of the cloud. It should have been visible… But it was gone.