Grimdark Mycroft

Mycroft doesn't go grimdark in A Scandal in Skaia

But the idea is enticing.

I mean, after all he's sitting way out on a meteor at the edge of the furthest ring listening to the whispers of horror terrors while sorting out his feelings after a disastrous chaplog with Greg

Who knooooows

Maybe he does go grimdark and rushes off to fight Moriarty ;UUU

Maybe maybe not