I don't own Marvel.
Harlyn ran for her weapons. She grabbed her black sword handles and extended them into sword as Tony watched amazed at the sight of the two fearsome blades of pure destruction. Tony ran for his high tech suit and grabbed Harlyn, who had put on her Shadowmaster outfit before going to Tony Stark's house, and flew off to the warehouse.
When the two siblings arrived, Harlyn grabbed her swords and told Iron Man she would enter, grab Pepper and get her to safety before telling him to go in. He reluctantly agreed knowing that if he did not, they would waste time arguing.
Harlyn slowly entered the building and worked her way in the shadows of the room to Pepper. Then she put a hand over Peppers mouth and cut her bindings with a blade before pulling her, with her hand still over Peppers mouth out the building while Stane was looking the other direction.
Once outside she let go of Pepper, who attacked her for a few seconds until realizing Tony was there, and motioned for tony to enter. Harlyn told Pepper to stay outside before running in to join the fight. Harlyn managed to cut a few wires on Stane's suit before Stane and tony flew away. She hoped it would help, and went back outside to stand with Pepper.
Tony flew upwards watching Stane as he flew to the suits limit. Stane started icing and Tony saw cut wires. That clever girl must have nicked them while Stane was distracted with Tony. Stane fell to his death and tony flew down to Pepper.
"Who are you?" Tony asked the mysterious girl.
She said he wouldn't believe her if she told him, but pulled off her hood and said ", I am the oldest of a family line. I faked my death and hurt the only person I ever loved. I wear this outfit as the Shadowmaster to make myself not so guilty over it, but it doesn't work. I am Hailey Smith, a girl who just wants to make herself a decent living, but I am also someone else. You must figure out who I am as I will not tell you."
She put her hood back on and ran off, using an invisibility app on one of her gloves to get away. Tony tried to stop her, but couldn't.
He said ", I will figure out who you are if it takes my whole life." Pepper stood there dumbstruck as of what to do. She said ", I'm going home," and left. Tony left after that too.