And Cam can produce the Library of Hell on servers in the Milliways backyard, if they wish.

They wish.

All the works of everyone in six worlds are at their fingertips.

They appreciate this!  Immensely!  It's even possible to tell this by their body language and facial expressions a bit; they start trying to copy those too after a few more days of exposure.  They don't quite manage to do it while concentrating on absolutely anything else, but attempts are made, and they're happy-seeming ones.

Cam remains on hand to troubleshoot as needed (and make sure they don't wander off into unfriendly time dilation).

There are occasional questions - it turns out they can't see cartoons very well, although 3D animation is substantially better even at similar levels of stylization; it seems to have a lot to do with the level of shading detail (and indeed, they don't have an issue with the painted backgrounds when they watch the earliest animated films, just the simpler moving characters) - but in general they're fairly content to sort through everything on their own.

They play their instruments and dance, both with variable numbers of limbs, and eventually think to ask whether Cam wants to join in.

"I can't dance but I do play violin."

'Why can you not dance?'

"Too clumsy. The wings and tail help but I still fall if I break into a run or dance."

They consider that for a moment.

'This is fixable.'

"- really? Uh, I don't want to - spend down resources you could otherwise direct toward resurrecting Maiar -"

'Not yet.  If you were mine you could do it yourself, and this would contribute, not detract.'  A smile, which they hold for a beat and then immediately drop in order to resume speaking.  'It is better when more people can do more things.'

"What exactly are the features of being 'yours', the phrasing isn't - neutral, as I currently understand it..."

'If I instead call them 'vampires' will this cause you to become distracted by etymology again.'

"...a bit, yes."

'How so.'

"Traditionally in fiction about vampires they drink blood, may or may not be evil, have various vulnerabilities and drawbacks that would bother me more than the inability to dance, sometimes have psychic powers and connections which ethically concern me..."

'Yes, mine are modeled after those.  I read about them and they were the most perfectly-aesthetic thing I had ever heard of, so I made them real.  Though I did not see fit to include the evil or the vulnerabilities.  There are some psychic powers available but I avoided unethical ones there as well.'

"What ethical psychic powers do they have?"

'They can decide how much to care about people and model them better than they would otherwise be able to.  And make them fall unconscious; it was decided it would be better for people to have the option in a situation where they might otherwise kill someone.'

"...model them better how?"

'It helps one understand how others work as people and predict how they'll react to different situations.  Its fidelity is not very high.'

"Understand and predict them by what mechanism?"

'I don't understand the question.'

"- I probably shouldn't be a vampire anyway because it's very important that I be a demon and I'm not sure they'd interact constructively, so maybe it doesn't matter for my purposes."