Teclis: definitely a mortal (if a long lived and powerful one) in the-world-that-was.

Teclis: Definitely a god now, in the world-that-exists.

Admittedly, there's a limited pool of people that remember the-world-that-was, and it's possible that Teclis made it up--but it is a slightly strange story to make up.

Where are they worshipped? Or where do they reside, if that's applicable?

Teclis lives in Hysh, and is one of the gods of it along with his brother Tyrion. He's also a god of aelves. ...some aelves. It's complicated.

How complicated?

Well, there's a few types of aelves, to start with. Malerion has his dark aelves, Morathi (not a god, probably?) has her Daughters of Khain, Tyrion has his light aelves, and Teclis had his.

The other complicating factor is that Teclis' aelves went missing. They dropped off the historical record almost as soon as they entered it.

Any convenient war or some such to explain that, or is it An Enduring Mystery?

Not really. They're just-- not around anymore. It's not even certain whether they're dead or not.

What about his brother, what happened to him?

Tyrion is around, as are his aelves in Hysh.

Is he also mortal-descended?

Yes.

Right then.

She extricates herself from the stack of books. Are her guides still around?

They're still around. Owain has his nose in a book about siegeworks engineering and is taking notes, and Zana has flopped over a chair as she thumbs through the history of armour in Shu'gohl. 

"Do you feel yourselves compelled to follow me should I leave the city?"

"...depends what you're planning to do? If you feel like conquering a neighbouring city, we'd stop you, but otherwise--" she shrugs "--assuming you just want to leave and don't want to strike a blow against the Free Peoples, we won't follow."

"Conquest holds no interest to me, and I bear no grudge against the Free Peoples."

"We won't follow, then."

"Then goodbye, if I do not see you later."

"See ya. Please don't change your mind about conquest, it would be very inconvenient."

She leaves the library.

And as a gesture of courtesy, she delays turning into a dragon and flying for a gate to Hysh until she's left the city.

The city appreciates that!

There's a gate to Hysh 40 kilometres north of the city.

That won't take her long to reach at all.

It's a natural archway of limestone. The rock glows a brilliant white, lit by the scintillating white and yellow light of the Realmgate.

Any guards on this side?

There are some people in plate armour: one and a half times as tall as a normal human, wearing golden armour and royal blue tabards. They seem, at least temporarily, unsure what to do about a dragon.