These kids should have been contained, kept from getting into any more trouble, questioned and their stories verified. Instead, Nick had chosen to coddle Wanda and the fantasies that came all neatly prepackaged for her to indulge. But as irritating as the three boys were, they didn't do anything to Tony like the girl did-- and for once, and most unfortunately, that had nothing to do with his libido. Claiming to be Wanda's children, that was one thing. Wanda never had children, there was no emotional reaction. When he'd heard about this new one, a fourth, Tony's first quip had been, "Let me guess: this one's Steve's daughter."
He didn't expect it to be worse. Scott Lang had lost his little girl. There was a distinct, unique cruelty in bringing someone back to life; one that Tony had inflicted enough, but one he was starting to well understand, too. Tony couldn't imagine what that sweet little face would do to Scott, and God, she did look like Cassie Lang, if someone was setting them up they certainly were perfectionists-- that was doubt, Tony, 'if'. This had to be a set up. The speedster had admitted to working for Magneto. There was no if.
But that little girl down there was the same one Tony had seen buried four years ago. The stealth suit kept him silent as he skipped across rooftops, keeping close and watching her as he had been since he disappeared before that 4 o'clock Pepper said was very important, Mr. Stark. She only said it that way when it was actually profoundly boring. Tony had more important things to spend his time on. Either this little doppelganger in her own right was going to lead him straight to the heart of this mystery, or she was just going to break his.
Tony barely noticed what she was looking at, what everyone was looking at, until it was almost too late. And even then he hesitated, just a fraction of a second-- shrug the stealth, lose his trail? Of course he had to, that was the Avengers code. Save innocents, then get the bad guy. No exceptions. He was a silent, black streak shooting like a missile towards the tumbling body.