Remember how when Sherlock had his relapse the first and only person John called was Mycroft
They are allies in Sherlock’s well being
And then Sherlock gets fucking SHOT
Don’t you think Mycroft and John might have had a conversation about that???
What if John and Mycroft have a plan to take Mary down
What if they kept the truth from Sherlock “for his own good,” the way Sherlock kept the truth from John at the end of S2
And then Sherlock effed it up by shooting Magnussen
What if John knows Mary isn’t pregnant and lied about the scan to keep Sherlock in the dark
Remember how oddly smug John was at the end of HLV
What if he’s the dragon slayer and Sherlock is the damsel in distress this time