What if she replaces "when a person touches it" with "every fifteen seconds"? (It's a good thing her parents aren't home right now, the unpredictable ringing noises would be so annoying.)

That also works but does not record.

The phone rings, which might be hard to hear with all the ringing.

Getting it to record is no longer the goal. She disenchants it after three rings, wonders for a second why her disenchant didn't work, then realizes it's a different noise from a different room and goes to answer the phone.

"Perry household, Margaret speaking."

"Hello, Margaret, it's Dr. James, is this a good time?"

"Sure, now is fine."

"The Council would like to meet with you on Wednesday evening at seven about research protocols."

"Okay, I'll be there. Are you going to be there too? Do I need to bring the rock or my notes or my driver's license or anything like that?"

"I'll be there, yes. Your notes might be useful and I suppose they could ask to see the rock, but your driver's license won't be necessary if you normally don't carry it."

"Okay. I'll see you then, I guess." She confirms the address of the council building.

And Dr. James hangs up.

Okay, back to research! She can make a rock make a sound she describes, and she can make a sound out of nowhere that she refers to, like prior incantations. Can she do both at once?

Her next experiment involves two rocks on the diagram, and the incantation "Cause the rock that isn't glowing to produce the sound of the first incantation used to enchant the glowing rock, at sixty decibels, when a person touches it."

Doesn't work, does expend the diagram.

She goes over her diagram, her incantation, and her setup again several times before concluding that she definitely wasn't doing anything new. The only change was that she was combining effects. Possibly anything that counts as multiple effects is impossible, but given that she can make one spell do all of "detect if someone is touching an object", "detect if the person touching the object says a specific word", and "make the object and the person touching it and everything they pick up turn invisible", that doesn't seem too likely.

Eventually, she concludes that it seems worth the risk of throwing more power at it. She starts producing, carefully and laboriously, a double-sized version of the diagram with an additional layer of cancellations; it's an open question whether she gets it done and safety-checked by Wednesday.

Wednesday arrives first. The council building's doors stand open; her case ("Research on Healing Magic, Ethics Committee") appears on a letterboard posted outside under "Paper Product Supply Chain Failure Analysis" and above "Open Session: Comments on Repaving Myrtle St".

Well, now she's curious about what happened to the paper product supply chain. She heads on into the council building, looking around for either Dr. James or the room the meeting is going to be in. She's never actually been in here before and has been looking forward to checking it out.

She can catch the tail end of the paper product supply chain failure analysis ("- in the future you may allow mundane drivers expressing suspicion to examine the shipment to verify that it is not drugs, Mr. Pratt, dismissed") and then she and Dr. James, who has been sitting on a bench with a book by the water fountain, are called in.

In she goes. She's wearing a slightly nicer outfit and a slightly more nervous expression than usual, and carrying the notebook with her medical notes.

The council are a Nemean lion, an elderly harpy, a griffin, a squirrel totem, and a centaur. "You're Margaret Peregrine?" asks the centaur, flipping through the papers on the table before her.

"Yes, I am." She clutches her notebook as an alternative to fidgeting with it.

"And you're seeking permission to, under Dr. James's supervision, conduct experiments on sapient subjects of a healing spell attached to a... rock."

"That's right." Would it have been better, somehow, to use something other than a rock? She could make a magic wand, probably, if anybody cared that much.

"Can you summarize for us what if any tests you've already done with the rock?"

She reads off her notes on the couple patients she treated with this rock, quick descriptions of what they had and how well the rock fixed it. "I also have some notes from an earlier, less powerful version, if you'd like to hear those too."

"What did you do to make this rock more powerful?"

"I increased the size and therefore the power of the rune diagram used to enchant it, with a corresponding increase in the precautions I took to prevent side effects."