Emily follows! Two healers is more efficient than one on several levels.
A boy somewhere between eight and twelve years old follows them across the room, having apparently been waiting beside the former doorway while they blasted their way in.
...Yeah, bruise man is the lowest priority here. Emily begins healing the rest, dotting one and healing them before moving on to the next--it probably wouldn't leave her nonfunctional to sympathetically heal several people at once who had been walled but she's not eager to try it.
Edie does likewise, although she does note the kid who was beside the doorway. "Are you the person we were talking to?"
"Physically, yes. Mentally--they've been through a traumatic experience. How well they hold up depends a lot on them." She glances at him again. "...How much of this did you organize?"
"She did, thankfully. She's at our house right now." Healing someone by Si Vales Valeo doesn't take a long time--they're down to bruise guy. Edie heals him. Edie catches Emily's eye, and glances meaningfully at the kid.
"...You think so? Yeah, I can see it. Mercurial Metal Manipulation." A tendril of probably-steel, presumably from one of the guards, flows over and forms up into a rectangle about the size of a business card with an email address engraved on it. She hands it to him. "Give us a ring in a couple of years, okay? It's always best to have a mentor when you're just starting out."
"Edie thinks you're getting magic when you're old enough. I don't disagree."
"Not everyone who gets magic is. Magical Boys are rarer, but they exist."
"You'll see. Was that everyone who was hurt, or just the worst?"
Twisted ankle gets dealt with first because that could actually be an impediment, but healing for everyone. "Is there any particular reason that any of you know of for not just getting out right now?"
"I'll go in front and my sister can take the rear in case we run into guards."
Unfortunately they can't keep the sides covered, but she is very careful about looking both ways whenever they cross an intersection.
They make it out of the horrible spacewarped maze safely. ...And that would presumably be the assassin's distraction!
"Hi. The distraction, I presume?"
"You must have met Star," says the short girl standing at the maze entrance holding a pair of honest-to-God lightsabers.
Her costume is very reminiscent of the assassin's, but with a slightly more elaborate design, a colour scheme favouring deep blue rather than black, and paired moon and sun symbols instead of a set of stars. Also, she is glowing with a fierce silver-edged golden light that silently sings of help and healing and heroism.
"My sister and I were fighting the guy who set this place up when she killed him. Nice aura, by the way."