Nod. 

"Tell me before you start casting?"

"Sure, but I think one of the doctors wanted us to pick some other people before we go to a live test. Some of the set up can be re-used between casting."

"How are you picking people?"

"They are mostly sending them our way and we are confirming that the person knows what is going on and what could happen."

"Oh. Should I go?"

"Yes, please. Thank you for your time." Polite smile.

He goes.

Next patient.

She walks in, trembling only slightly.

Well, that is not very reassuring. "Hello, I'm Sovie. How much have you been told?"

"Can you cure me?"

"Yes, my stepson is working on a cure."

"What do I have to do."

"At this stage we are just searching for volunteers and giving them some information so they can have a minimal capacity to give consent to the experiment. Aside from that, when the time is ready you will need to stand still for the casting and then wait in observation so we can detect any ill effects. I believe in my stepson's capabilities. But you still should be warned that if something goes wrong it might kill you or damage you permanently."

"I got that, thanks. Tell me when you're ready to start?"

"We will. Thank you for your cooperation."

Are there any other volunteers?

There's one more.

He's quiet. He mostly just stares at them for a minute before saying, "Thank you."

He leaves.

Alright then. No one else? Okay.

Temple finishes the spell design soon enough.

The other patients are less desparate, or more terrified of strange visitors. 

They might want to tell someone they're done; no need to make those poor kids wait.

Normally they wouldn't accept the last one back, but they can do the other two first.

They set everything up. They call the patients back.

Separately, or together?

The spellcasting proper is going to be done separetely, but it isn't going to take too long so they can wait outside the designated area.

"I can go first, if you want."

"No, I think I can handle it."

"Alright, sit over there inside that circle."

Presuming compliance, Temple starts the casting process. It is going to take a few minutes and he needs the uttermost concentration.

She sits, and doesn't break his concentration.