Two Dot: what remains

The fire was still burning in the morning. A man, who looked to be covered in soot, walked around the site. Had he been there all night? When I’d gone to bed the fire had been the size of a small house. Tall flames burned through the night and I slept badly. What was burning... debris from the remodel next to the bar or something more secret? Eventually the soot-covered man drove his truck back down the railway line and left a few flames and a stream of smoke running low across the filed. The smoke was nearly blue, not like the blue of a hot fire, but blue like milk with all the fat removed, or the sky at the horizon where the intense blue light has already been scattered. What ever had been, was there no longer.