<Not quite yet. One moment> He gauges the power-drain, it's a guess but a fairly precise one. 

:Less than eight hundred miles to the north: he tells Mahdi. :First location ought to work: 

He Teleports them.

(Meanwhile, in an unmarked spot above southwestern Valdemar, the vrondi stop clamouring their very confused alarm and hover, uncertainly.) 

And then they're in a fortified underground room, next to a large open archway, and a dark-skinned woman is rising from the chair where she was waiting. "Welcome!" she says in Valdemaran. 

Both of them nod, glance around, step back; this is all they can reasonably do, not having gone for Tongues.

"They can understand you but not answer," Leareth clarifies. "Those are different spells in their magic. I can translate anything they wish to say." 

Nayoki nods. "I amassed all of the records you asked for and some artifacts. We can also lend them - at least several dozen Healers, I think." Glance at Mahdi and Fazil. "But their transport magic is per person, yes? So it will not be trivial to move several dozen people." 

I can do seven a day.

"I think I can invent a Gate technique that will work between worlds. Although it will presumably be more tiring than the usual one. And I suspect it would take weeks of research. It might be more efficient to transport a few other mages to also work on a new Gating method, since I am already very busy over there." 

Nod. 

I can take four people today unless the records are really expansive.

Nayoki shows him the records. They fit into three square boxes, each an arm-length across. There's a littler crate of magic artifacts. 

Four will be fine.

"That is four in addition to us?" Leareth clarifies. "I would like if you came, I think, and Narva." He names one of the senior mage-scholars half at random. "And then two Healers, if there are volunteers ready to leave now." 

"There are, yes. May I have time to pack?" She looks at Fazil. "Do I need to keep my packing light?" 

Under your own body weight, approximately.

"Oh - that is quite generous. I will go back and tell the others to get ready. Is there a deadline that we need to depart by?" 

Not on our end.

Nayoki heads off to collect people and inform them that they need to pack. 

"...Since we are here anyway, would you like a tour or something?" 

Sure! It must have been expensive to build something this expansive underground. ...at least with our magic it would be.

"I think cheaper with our magic, although generally only a part of the excavation is done with magic and some is done without. It is challenging to dig out a large space quickly, if the magic needed exceeds what is available from node-energy, but nodes refill over time." 

Leareth shows them around his underground space. There are some shielded Work Rooms for doing magic in, an infirmary, some offices and meeting rooms, and an extensive library. 

They squint at everything with Detect Magic and look at the spines of the books (Comprehend Languages does written material as well) and agree that this is a high quality secret base.

If any specific books look interesting, they're welcome to take them back! (Leareth grabs a few books on magic techniques.) 

Sure, they will each pick out a couple of books, mostly on local history and geography and politics.