I hope I got the apostrophe in the right place, it was inteded to indicate a plural possessive. Scarlet on its own is vague, but Scarlets as a plural is rare. I believe Grahams worked this out as he suggested a Gower cave - south of the home of the Llanelli Scarlets, one of the four Welsh rugby regions.So what's all that about Scarlet's home (not to mention most of the rest of the clue . . . sorry, I'm not taking the piss, I just don't get it)?