Guys,take a second and read it.OBSERVE!
I doubted it myself but then I just looked at CAM’s file about Marry again.this is a screen cap from HLV. In which CAM shows Sherlock and John there’s nothing except his mind palace, and I saw it.
look carefully.there’s a printed A.G.P.A in black Which has red circles around it but actually There’s a written form of A.G.R.A Right at the top of the printed one,which was written with the same pen and the same color of the circles. got it? yes, Marry didn’t reveal her secret.she just has changed her name and Maybe»2 theories.
1.There’s a fake initial about Mary which name is A.G.R.A.She’s made it because she calculated the possibility that maybe one day her secret reveals and then she can show this fake initial instead the real one(A.G.P.A),So she made a escape way,CAM found it out,wanted to use it against her.
2.CAM knew there’s a fake initial named A.G.R.A.he thought Mary was the honest one so he himself wanted to tell them that it’s not the real initial but A.G.P.A is the real one.so Mary wanted to do something before he could do anything so her escape way can still remains if John found out abot her past,but in the way she faked it(A.G.R.A),not the way that it really existed(A.G.P.A)
I’m not sure about the second letter,but I’m 100 % sure about the 3rd letter.it is P not R.Mary didn’t tell the truth…Again.