"Specific summonses usually don't hedge things out in the same way. I'll talk to our bindings expert."

"It's possible to grab a specific general summons within four or five tries, these days, with response times down. Specific I doubt does anything. If you find yourselves arresting wizards you should disarm them."

"Fairy, or is there some other protocol you'd recommend?"

"Fairy can do it. Maybe endeavor not to destroy the wands until they've been convicted, Timothy told me quite emphatically that should it come up cutting a wizard's arm off was much kinder than breaking their wand."

"Having the wands around at all sounds like a risk."

"I can ask if there's a safe way to contain them. I suppose if you declaredly have a policy of snapping them they can be expected to leave theirs at home."

Nod.

"We're handling it by keeping a much tighter chokehold on summoning than is tractable for you to do, so you're in the harder position by far. The Hazel natives are willing to answer questions, should you have some, and willing within some constraints to do training and experiments and so on."

"What constraints?"

"Local law - which is disturbingly indifferent about memory modification and so on but does take the Unforgivables very seriously - lack of expertise - these are mostly spells it would be highly suspect to know at all, and they're all teenagers - informed consent..."

"Which of the concerning spells do they know how to perform, collectively?"

"They can stun people, they can temporarily erase a few minutes of memory, one of them knows some Legilimency, Timothy picked up and taught his partner the Imperius and the Killing Curse for use against our evil god - doesn't work -"

"Swan?"

"Yes."

Niari finds this questionable but isn't sure how to formulate a question.

"- more context: Way was attending magic school in Hazel in 1802 when he encountered an interdimensional portal to a location called Milliways, which is a - library of worlds, with the published works of any dimension anywhere in the multiverse. Swan was unbound on the replacement Valinor halfway through fifty-five million resurrections when he encountered a portal to the same location. Swan noticed the resemblance to me, and asked for an overview of Hazel magic in case there was anything that can do time-travel or resurrections or kill Melkor - at this point he disclosed that he'd recently holed a planet - and Way asked for 2180 medical technology and infrastructure and so on. Swan taught him how to do summoning safely; he summoned a demon and requested documentation to verify Swan's story about the circumstances surrounding the destruction of Valinor, summoned a fairy and evacuated Azkaban in favor of a prison arcology on the Moon, rounded up all of the Dementors and put them in deep space somewhere, and had a bunch of elderly non-magic and not-informed-of-the-existence-of-magic people summon daeva in order to check whether they, like Revelation's inhabitants, would thereby become daeva when they died. 

They then decided that their top priority was checking interactions between their magic systems, in particular whether daeva were vulnerable to mind control or to murder and additionally whether the Imperius could override a binding. If daeva were safe against magic, it seemed possible to roll out summoning in Hazel; if not, it would have to remain a secret. Though I think they were still considering using it personally to end slavery and so on."

"That doesn't fully explain teaching Swan the curses."

"Not at all. - incidentally Swan's summoner was at this point on a planet whose location was known only to Swan in a dimension to which Swan controlled access. If you're inclined to find 'had he desired to make trouble there is nothing anyone could have conceivably done about it' persuasive. Anyway, one of Timothy's younger siblings is murdered by a fairy he summoned, and becomes a demon; this provides confirmation that summoners daevafy even outside your dimension. When he becomes a daeva he is to his grave disappointment no longer a wizard. This is, from a strategic perspective, good news, as it means they can roll out summoning in Hazel without the fear of adding wizards to the daeva population. But Minor is terribly upset over it. Swan takes a few weeks looking at the genetic basis of Hazel wizardry, does a bunch of self-transplants, and becomes a wizard. 

They check whether the Killing Curse works on daeva; it doesn't. 

And at this point someone wanders into Milliways from yet another Arda. It transpires that there are four hundred million of them - there are even more Earths, if you were inclined to wonder. Now it seems urgent to know whether Hazel spells can stop Melkor - Swan, of course, already has a way of solving this problem but it has appalling collateral damage; teaching him the spells just gives him a cleaner one. Swan contemplates whether to turn himself into the local Valar in the hope that after executing him they'd fix the Valinor he destroyed. Timothy is opposed - they're involved by this point - and proposes instead that they look through all four hundred million and find a set of Valar who won't execute him and enlist those ones for help fixing the black hole." 

"This is a really... fantastic, in the literal sense... set of events."

"Most of why I didn't lead with it is because it is all-but-impossible to believe. You are welcome to come to Milliways and check it out for yourself."

"I will... try to make time."

Nod. "They find a set of Valar who seem qualified. Those Valar invite Swan in, interrogate him about the events, conclude he should face a war crimes trial but is not a danger to anyone pending that, let him go, go resurrect everyone who was not yet resurrected, and capture the local Melkor so the effectiveness of Hazel unforgivables against him can be tested. Swan attempts it; it fails just like it fails against daeva. They come up with a way of using Vala magic to cancel black holes, so Swan can kill Melkors while everyone else on the same planet is uninjured. They employ this at need in other Ardas. I've elided lots of other interdimensional interventions that don't touch on Hazel or Swan especially.

Now that everyone has been resurrected and the black hole set to rights, Swan goes to get his summoner off the hidden planet. Summoner is horrified and dismisses him; he arrives back in Hell to several hundred Ganymede circles open for him and the rest I think is familiar to you."

"It puts the visitors he received in more context."

"And my insistence that we'd have no trouble recapturing him. I'm unsure how best to explain to the world at large that the Elven empires are actually clusters of parallel worlds - I've had to be evasive about things as basic as our population because it jumps a few billion whenever we intervene in a new one."

"Well, if there are more Earths then that will eventually provide a usable analogy."