Ghostly countenance

Brutally hot and humid day. No breeze. Few creatures stirring. Saw a web dangling from the big sycamore to the ground. Then saw movement -- this little spider, ghostly pale with just a touch of yellow, scooting up. On a manual camera, adjusting exposure would have been quick enough, but switching to manual here -- by then it was gone. Still, a picture that looks like a negative but isn't.