Remus' warnings about Death Eaters came crashing back to her,but she couldn't work out how they'd polyjuice into Sirius. That, and if they were after her, James would have been better bait. "Love, it's me," she said softly. "Lily," she added, just in case.
She didn't like the way he looked though, like something more than just the displacement was wrong. Maybe he'd come in like Remus had though, after a scuffle with some DEs. "New York. 1964. It's ... complicated," she said as she started to reach out for him before thinking better of it. He had a wand and didn't look entirely stable.
"We don't know how we got here," she said. "But there are a few of us. Remus has been here about a month now, and I'm going on two weeks." For now, she thought it best not to mention Tonks, Neville, and Severus just yet. Or ever, in regard to Sev. "What ... what's gotten you so ... worked up?" If it was more than just the displacement ... maybe she didn't want to know.