While flying my drone at approximately 200 feet I observed an object above it at about 2000 feet.

I was flying my drone taking aerial photos of where I live at about 200 feet when the battery starting getting low and I was flying it back to land it at home. When it arrived home I looked up at the drone and approximately 1800 feet above it was a double knife bladed object moving north to south above the drone at about I would say 75mph. Then it just dissapeared like it was never there. I kept looking for it but never saw it again. It was white with grey shadow on it. It was directly above the Cline Falls Bridge area.