This is what Mycroft’s looking at when Lestrade comes to ask him about the bolt holes. I know it’s hard to read, but he’s using it to track someone. A couple of things…
1. Codename UGLY DUCKLING? Rubbish big brother, honestly. Except…
2. Hope I’m not about to embarrass myself geography-wise, but that doesn’t look like London…or England. In fact, it kinda looks like…
3. It says “tracking” and the “ugly duckling’s” position is clearly marked, yet Mycroft just tells Lestrade a few more bolt holes to check out and does not give an exact location, then casually dismisses him as if he has bigger things to worry about than his recently-shot little brother’s hospital escape (which we all know isn’t quite true).
If that really is somewhere around Warsaw – or just anywhere outside of London – well…Sherlock isn’t who Mycroft’s tracking here. So who is it?
Ugly Duckling…well, that’s a famous fairy tale. And we all know who loves fairy tales. Is Mycroft tracking Jim?
Alternatively…it’s the story of a duckling who is rejected by its family and eventually finds acceptance with the beautiful swans. Is Mycroft tracking the other one?
One more option – canonically, Irene Adler was the Prima Donna of the Warsaw Imperial Opera, and in this retelling we know she’s in witness protection. Is Mycroft tracking Irene?
Thoughts?