"I was right you do work in the government in fact you work for my brother as his personal secretary, ha I can't wait to see his face when he hears you're his niece." She just looked at him for a second and then it finally clicked. "He already knows, you told him before you told me? He's the one that took you in, how could you go to him?"
"It was actually quite easy I needed help, I hated you, I thought who else would take me in because I wasn't going to go to you, and it struck me, your brother would take me in he could give me a place to stay and all I would have to do is tell him the truth. Though I was expecting to only be at his house for a little while, but I got a bit attached and when I turned fifteen he made me his secretary." She made it sound like it wasn't the most insulting thing she could have done to Sherlock.
He just looked out the window clearly not wanting to say anymore. "Oh, are really going to be that way." She waits for him to reply, when he doesn't say anything she says "fine I don't need you to talk to me." She immediately starts fidgeting with her seat, she can almost taste the silence in the car it's so thick. She gets out her computer and just messes around on it until they pull up to the private government airport that houses Mycroft's private jet. After the driver flashes her possibly fake government clearance ID at the man at the gate he lets them in and they go to the plane at the end of the runway. After Sherlock and Andrea get out of the car the driver drives a little ways down the runway, gets out of the car, walks up to where Andrea and Sherlock are standing and pushes a button on the remote that's in her hand. The car blows up in a big display of fire and smoke. Sherlock and Andrea are far enough away from it not to get burnt but not far enough away to not feel the intense heat now coming off it.
Sherlock's jaw drops in complete shock. Seeing his expression Andrea says " What? did you think I was just going to let them find it here?" When he doesn't reply she sighs "Well, we need to get on the plane there going to be here in about 3 minutes to investigate the explosion, and you know people don't really like random explosions, for some reason" She enters the jet without looking behind her and he follows her. The driver runs to a different part of the base where a car is parked. She reaches it just as the plane lifts off the ground.
Sherlock and Andrea go into separate aisles on the plane. Hours have passed by when he gets up and sits on the aisle a crossed from hers . She is reading a book with her legs propped up on the edge of the seat in front of her. She doesn't even look up when he sits down, he clears his throat, still no response then he says "Where did you get a book? your bag wasn't big enough to hold that and four bottles of liquor." She still doesn't even acknowledge that he's talking to her.
He sighs "Okay, I may have over reacted a little bit, and um I understand that you wouldn't go to me when you were in trouble, I mean I probably wouldn't go to me if I needed help. That's why I don't understand why so many people do I guess I'm just that good um." She puts down the book
"Mycroft keeps a stack of books in the last two seats for me, I get terribly bored on these trips." He looks to the back and sees the books
"I can't believe I missed that, so you uh like to read then." She smiles awkwardly at him "You already knew that."
"Um yeah I did, but I don't know your favorite book." She laughs a little.
"Ha are you trying to be a father now? (Sigh) I don't have a favorite book I like the classics and, science fiction." He wrinkles his nose
"Science fiction, what use is reading about a technological future when we're going be invaded by japan no matter what we write about it."
"Yeah I know it's not exactly what you read when you were a kid, it's not a history of mathematics or anything." He looked confused for a second
" You know about that?" Andrea looked at him apologetically as realization dawned on him
"Mycroft told you about our childhood. What else did he tell you." He seemed mad but not mad enough to ignore her again so she said.
"Well, he told me all about you when I asked him to, you were kind of an obsession of mine. I had to go to the places you were going to be, I solved the cases alongside you, without you knowing of course, I asked him about every single detail of your life. I had to ask the exact right questions to get even a word out of him, but it was worth it I even met my um your mother." He looked mad for a second but then he just nodded like he accepted the fact that everyone in his family met his daughter before he did.
"You did, what was that like?" She looked down and started messing with the strings on her hoodie
" I didn't tell her that she was my grandmother, since that's what you're worried about. No Mycroft canceled his day out with her when she was in town and said he felt bad about it so his assistant, me, would show her some sights in london with my all clearance pass. Well it was pretty good and she is really amazing I don't even think you realize how much she sacrificed for you but I guess that's just what having kids is about, and after a couple times of taking her around sight seeing, she, she said I was like the daughter she never had, that was the only time I've ever cried in front of someone."
"Oh, um" Sherlock looked very uncomfortable all of the sudden. She laughed at his attempt at feelings.