Whilst turning some of the refugia put down by KRAG on the Greensand Ridge near Westerham in mid-September, I was amazed to find a dark brown, almost black slow worm, under one of the felts.
 
I have never seen one as dark as this before, and wondered if anyone else has found similar. I have returned to the felt a couple of times since, but 'the dark one' was not to be seen.