"Banshees," he diagnoses.

She snorts in amusement.

"So. The hospital, then."

"The hospital. I'll interrogate the doctors, you can look out for the Dread Doctors, Scott can get their medical files."

Nod.

"Stiles, you okay to wait here?"

"Yeah. Go ahead."

The three of them go. 

They should start near the ORs, if the Doctors are interfering with surgeries.

So they do.

Lydia plays with her hair and talks to the head physician.

Scott peals off to try to get access to confidential information.

Ellie looks for other signs of their presence.

Nothing jumps out at her. 

Oh wait yes it does.

They walk, the air shimmering as they flicker from place to place.

She rips their heads off.

Their bodies keep walking.

Not for long, though. 

A nurse screams, and there are shouts and people begin to run. 

"Time to go," says suddenly appearing Lydia.

"Yes. Leave them here or remove the evidence?"

"Mass hallucination? We can try moving it."

Scott leaves, making sure they see him before going. 

So Ellie brings the body along with them as they leave.

One of the doctors makes a token effort to stop them.

"Hey, you, get back here!"

He finds himself unaccountably unable to follow after them.

They make their escape undeterred.

"We probably should get rid of the evidence, but there might be something useful we can glean from examining them. Maybe keep the heads?"

Scott catches up to them. 

"We should get back to the others, and figure out what to do if there are kids out there they've already changed."