"Hello," he says. "I am Sherlock Holmes, Tony's clone. Before you ask, the technology isn't widespread; he invented it the once, when he was twelve, and has since forgotten how."
Adana blinks. Then she decides that she is not going to touch that. "Okay then. Hi, I'm Adana Sanders, I'm an angel. I'm guessing Jarvis told you the story already?"
"You may assume I know everything." He smiles slightly. "At least about what happened between your arrival and your entering this room."
She snickers, a little. "All right. Uh - I am willing to use angel powers in just about any helpful fashion. Except probably 'make me some uranium' or something, because ethics. So if you have been secretly dreaming of turning your hair lime green, I can help."
"Thank you, I'll pass. If you have any mysteries you need solved, I invite you to direct them to me."
"Is there a specific brand of mystery you specialize in? Or just all of them?"
"Neat hobby, it sounds fun. I don't think I could manage it myself, but - sounds fun."
"And I would have all sorts of plans regarding how to coordinate the five of us in enacting widespread improvements to the world, but alas - timing. I'd better go upstairs and check on Tony. You're likely to see more of me than him in the next few days, and not much of either."
"It's possible he will take you up on your offer of hugs at some point. And I'm sure he will appreciate your concern. As for the more practical level..." He shrugs. "There's not much to be done except await the inevitable assassination attempt. Tony being the only remaining obstacle between the man who killed Tony's parents and full ownership of Stark Industries."
"... Okay you might want to go ask Cam if he can make you some modern - er, modern for me - body armor."
"Potentially helpful, yes, thank you. But not of critical importance until such time as Tony decides to leave the house."
"Okay. You should probably get some, too. And - actually, I will play mobile do it yourself doctor if you need me to."
And he nods to her and retreats upstairs.