Challenge!fic: 'Mirror Image'

Wrote this to cover two drabble challenges at Black Pearl Sails (last week's 'Numb' and this week's 'Image') and for the piratechallenge #3, the prompts for which were sword fighting, something torn, and something precious.

ETA: Wow! There were nine submissions for the piratechallenge #3 -- a LOT of competition! Here's my entry...

( 'As you are, so you will fence. You can conceal nothing, nor can your opponent.' )