Five Minutes

I won't tell you in the first line, what this is a photograph of.  Would you care to guess?  This photograph has not been manipulated at all, and it is not a "negative image" (which is when you print a positive as negative)  Give up yet?    This is another photograph of frost on a windowpane.  In this case, in the bathroom which is on the south side of the house.  The sun was shining on the frost and casting shadows of the frost on a window shade!  Is this amazing or what?  As I was photographing it, the frost was melting and drops of water were visible moving down the window.  In five minutes, the frost was gone!  Whew!