Oh, perfect. No, not related - Mycroft is bringing in a ringer.

And - Mycroft knows about Martin's skills in this area because he knows Douglas! Is Douglas a member of the Diogenes perhaps? There's some connection here - they both belong to something.

Bad news - so and so has laryngitis, busted collar bone, is in traction for the next month - Mycroft is on it!

Anthea, dear. I need you to find your own way down this Christmas...