Cam is dipping a grilled cheese sandwich into a bowl of tomato soup when he feels the summons. He goes ahead and grabs it. Doesn't even drop the sandwich.
"Maybe we should just keep me out of sight and you can tell him that you have destroyed me with your ancestral silver athame or something."
"I could make you a distinctly non-ancestral silver athame but you'd know better than I if this would a plausible implement make."
"Fair. So I let him come around while you drop him off with the cops - maybe I go with low safe doses of an amnestic too just for redundancy, and if he seems to remember I exist you tell him that I have stopped doing it."
"Okay. I'll keep him down till we get where we're going, then. Are the zip ties plausible or should I replace them?"
"All right. I will double-check my memory on amnestic drugs." Cam conjures an extremely futuristic computer-object. With no visible actions at all he zips around through file structures, finds what he's looking for, reads it, and remarks, "All right, trial dose of this one and see if he's allergic... aaaand he's not, good, I can nudge it up - and that should do it."
"I think we've settled on the theory that it is merely an extradimensional computer. But yes, this is a very recent-model demonic computer."
"I will grant you that. Unfortunately, you cannot have one, because using it requires brain surgery."
"I mean, not strictly, but you'd have a much harder time of it than a daeva. I just made the chip in place and if I want to get rid of it the process is disturbing but not dangerous."
"Yeah. Speaking of the ongoing intactness of your brain, if after I've unleashed a hundred fifty years of medicine and terraformed at least one large sky rock and it's relatively lower in opportunity cost to determine if I can go to Hell and back - so to speak - if you summon me, or anyone else after this experiment yields its results, you may become a daeva when you die. I say may because of uncertainties about the interdimensionality but where I'm from it's quite consistent."
"Yes, well, in exchange for this narratively inappropriate distribution of rewards: no malaria."