Elsa's heart goes out to him at once, constricting in empathy. "It can be frightening," she says. "I spent a long, long time trying to keep to myself for the same reason." It hurts to think of those days, all the time she lost, the people she must have hurt by staying away, the pain she caused Anna. But she's learned a lot, too, since then. She hasn't ever had to articulate it before, but for Marcus's sake, she'll figure out how.

She doesn't step any closer, well aware how easy it can be to startle someone with these abilities, how readily they react to such feelings. Hair trigger. It's not a phrase she knew in her own time, but it's applicable here and now. "It is possible to control it. It can be used safely and kept in check, with a little work."