Well, she knew who Billy would want to see. And she knew who he needed to see. Thankfully, he was able to get them where the Scarlet Witch was, as Rose was unaware of her current whereabouts. She eased the wounded boy down onto the carpet when they suddenly appeared at Stark Tower.
They were both covered in blood, mostly Billy's, but Rose's left bicep had stained red her chainmail, and her left upper torso. Her swords were sheathed, though one was bloody from stabbing Loki through the air. His blood was distinctly darker than theirs and had stained her sheath. She was quite glad he had been wounded, even if he was able to walk away. Still, she wished she'd seen the pain on his face as he removed the sword from his chest.
Rose sighed as she knelt down over Billy, feeling his neck for his faint heartbeat. It was not a moment after that when she heard a male British voice speaking to her out of nowhere. "Oh my. Well, this is most unfortunate. I shall alert the caregivers," the bodyless voice said. Rose looked around and just gave a "...The fuck?" comment before starting to cut the clothing off where he was wounded so the person who could best help him would have a better visual of the gaping gash in his stomach.
The disembodied voice belonged to Jarvis, whose voice next appeared in the suites of Vision and Wanda. There was a light cough to rouse them before Jarvis spoke: "I do not mean to alarm you, but your mutual presence is needed at the utmost urgency in the commons room. It appears that Billy Kaplan, code name Wiccan, has been escorted here by Rose Wilson, code name Ravager on account of the injuries he has suffered. Shall I assemble further assistance for you?"