I am due to fight a duel but I do not know my opponent

Descriptions vary from a tall and dark man with a beard

To a slightly older man with softer eyes but similar features

I am told that certain mirrors hold a clue

But I am yet to discover their true reflections

Tomorrow promises to be a freezing morning

So I will wear my warmest coat whilst I wait in the duellists field

For this unknown man who despises me so much