1998
“Ah, Mr James. As you can see, the meeting with your Russian friend has been… postponed.”
“Y-yes.”
“Not to worry. I’m sure you’ll catch up with him in due course. Do you have anything to say for yourself?”
“I-I had no idea it was you. The lads talk about you all the time. Well, not you exactly. Him. The Ice Man. They say you can spot a defector from the mud on his shoes or something. I thought it was just a rumour to keep us all in line…”
"Well unfortunately for you I am quite real.”
"Holmes, I-”
“You should have cleaned your shoes more often, Mr James.”
…
Um hello yes I have a headcanon that Mycroft used to do legwork for MI6 and that he got that nickname long before Moriarty soooo have a very hastily drawn/written… thing. *runs away*