She expects she can do a dimension lock now before she leaves, extended from a rod so it'll last a month.  She can try some scries if she's got spells left at the end of the day and send the results. She'll be able to get more conclusive results from the scry if she can have a body part or former possession or picture of the target.

For Terendelev, they have a scale; for the others, they have some looted magic items or in Jerribeth's case some statues of her from the city she'd been running within the Worldwound with the villagers illusioned to see all demons as crusaders and all crusaders as demons.

Oh, did they want her to try to scry Jerribeth too? She was going to prioritize Terendelev then Xanthir Vang in that order. She does not expect to have three scries at the end of the day but she can try for Jerribeth too if she does.

(Marit doesn't know how many seventh and eighth circle slots Alfirin has, because she's never told him and it's never been in either her or the Crusade's interests for him to ask.)

"...you know, I can also try to scry these people, if we need someone to do that. I'm - obviously not as powerful, but having met all of them ought to help."

"I don't expect to be particularly advantaged at these scries, but it is a way that I can use my spell slots to your advantage without having to spend any teleporting back here."

"Right. Okay. I can ferry people over most nights. Does two days in the other world sound reasonable? Today, and then coming back tomorrow night?"

"That seems reasonable enough. I might be longer, in which case I'll probably send you. Feel free to keep whatever schedule is most convenient for you, I just want to know what the schedule is for if I am finished with all my business here quickly."

"Two days, then, unless you end up needing longer."

"Are we ready?"

"When you are."

Then she'll take them across. 

Next order of business, before she can think too hard about this being an insane idea: getting Nenio to greater teleport her to the Anferita Wood, hopefully without the rest of Cheliax noticing. Hopefully this is a peaceful mission that doesn't result in an extremely powerful druid attacking her. 

...but, just in case, she's going to bring Ember and Daeran and Regill and Lann. And Aivu. Mostly because Aivu will otherwise pout.

Ember gets to come because their first move here is going to be asking directions from some squirrels.

Directions towards tasty seeds and nuts? The squirrels don't want to share those.

"We're looking for someone who lives in this forest. A person, like me, only he's been here for a long time. Have you seen anyone like that?"

Oh, there are lots of people in the forest! Why this squirrel alone has thirty-one cousins -

"Stinky people, dumbass, not normal people."

There are some of those too. They move around, though usually on the ground and not up and down the trees much at all.

"Yes, those people! Have you seen any of them recently?"

The squirrels have short attention spans and have only seen this particular batch of sticky people recently such as today.

"That's okay! Thanks anyway!"

"They said that there are people in this forest. But they don't know where."

"Right. Okay. That's... unsurprising, I guess."

"But you have another plan, right?"

"Of course I have another plan!"

"...okay, I don't have another plan, but I will. ...Ember, how about you find another squirrel or bird or something to ask while I figure out what my other plan is."

Ember will look around for more animals to talk to!

There are some two-legged people who live in the trees! And some two-legged people who come into the forest and die horribly.

There are some people who walk on as many legs as they please and make the winds weak and the rains strong.

There are some vicious, clever, brown-haired people who.... 

(After an extended digression it becomes clear that this last is a cat.)

Oh! That second kind of person! Korva thinks that might be right! Have they seen any of those people around lately?

They live in the trees! Not in the treetops, just in the trees. They step out of the trees when they want to do that.