The gryphons are very fast in the air, and even bigger than they appeared at a distance; within thirty seconds their silhouettes are close enough to see that they're wearing harnesses of some sort. Maybe with weapons. 

They land, fifty yards out. 

"Outssiders!" one of them, maybe the leader, calls out. "How did you arrive here?" 

"Hello! We apologize for alarming you! We arrived here by accident; we were trying to travel to Valdemar, with magic that is imprecise when sending people places. We have peaceful intentions and will obey the laws of your country."

The gryphon leans in, listening, and then rears up. 

"What magic? Thiss sshould not be posssible!" 

"It is a magic granted to me by my god, and allows travel between planes."

The gryphons seem to discuss amongst themselves, in low hissing whispers.

A different gryphon, this one wearing a collar with a sort of chest-piece bearing a red-on-gold sunburst, steps closer. "How? Who isss your god?" 

"My god's name is Abadar. He is a lawful god of trade and commerce, worshipped in Golarion, where I am from."

More mutters. 

"We have not heard of that place," the gryphon with the chestpiece says. A pause. "Why were you traveling to Valdemar?" 

He gestures at Vanyel and Yfandes. "The Heralds requested that we help Vanyel and Yfandes return there, after a magical accident brought them to Golarion."

"Heralds arre not ssssuposed to come herre." The gryphon's sibilant accent is stronger. They - it's impossible to discern their gender - seem angry. 

"We intend to leave as soon as possible. We will obey all your laws in the meantime." He casts Sanctuary, which will make it exceptionally difficult for the gryphons to attack him. Reaches for a pearl of power so he can do it for Vanyel and Yfandes too.

The original maybe-leader of the gryphons rears up again, startled, and hisses something to the one with the chest-piece, who leaps closer to them. "What arre you doing?" 

He holds his hands up in the air. "I am shielding us, so that if we need to depart suddenly, we may. I have used magic only on myself and on Vanyel and Yfandes. I will not attack the authorities of your nation or the representatives of your god."

The gryphons don't seem to know how to respond to that. For a long moment, none of them move. The leader hisses something under their breath to the one wearing the sunburst insignia. 

:This is making me nervous: Yfandes sends privately to Vanyel and Fazil. :Maybe - don't move...: 

Maybe come very slowly closer so I can try a Plane Shift if they still attack us.

:All right: And Yfandes very slowly and delicately sidesteps closer to Fazil. 

Vanyel reinforces his personal shields - hopefully that won't be startling enough to upset the gryphons any further–

The sunburst-wearing gryphon hisses at them, rising up on their hind legs and mantling their alarmingly large wings. 

"Iftel and Valdemar are allied," he points out. "These are misplaced allies of yours who are here by accident and trying to leave. May we request an escort to your border."

Sanctuary wears off. 

Yfandes and Vanyel are now within touching distance. 

The gryphons do not seem reassured or placated. 

"You ssshould not have come," the sunburst one says. 

Sigh. "You've mentioned."

He readies himself to Plane Shift out if the gryphons attack them. Stands there, holding still, within reach of Vanyel and Yfandes.

The gryphons also hold still. It's unclear what's happening. The sunburst-wearing one's eyes have a distant, glazed look. 

About a minute passes. 

–then, very suddenly, all of them are on FIRE. 

The gryphons didn't even cast any spells.

When normal people catch fire they die pretty quickly. When high level clerics catch fire they mostly are barely inconvenienced, but this is because they have mostly cast Protection from Energy (fire) if they're in a situation where it might come up. He has not done this. 

He could do it now but it's more urgent to Plane Shift. It is hard to cast a spell while on fire. It's harder if it's a five-circle spell. Most people think whether you can concentrate enough to cast a spell in any given occasion is more or less a matter of luck, but he can do better than that, steel his mind so he cannot screw up...

He grabs Vanyel and Yfandes, who are also on fire. He Plane Shifts.

They land on scorching hot sand in the middle of the Osirian desert because Plane Shift is helpfully matching their departure conditions! Luckily there were no actual forest fires convenient to dump them in.