The living cultists she doesn't care to drag; she starts rigging up ways to attach them to the sides of horses in their cocoons. Any of them have anything to say for themselves?

They're not being very cooperative. Most of them are terrified, but a good third are a mix of angry and defiant. A couple of them have knives inside the cocoons and are trying to use that to cut their way loose.

Well if they're going to be conveniently making cocoon holes exactly where their knives happen to be she can yoink the knives.

Wait no they were using those-

Nope! They're going into Garms's stash to be issued to crusaders! Any other stuff they want her to take now?

...One of them has a second knife but he's going to save it and hope she gets distracted before she gets around to killing the prisoners.

She has no magical ability to detect secret knives.

Home they go, dragging the horse corpses and toting the cultists in their cocoons.

The trip back to camp is slower, between the people who have to now share horses and all the extra loot they're carrying and the horse corpses and the cocooned cultists, but they can still make good time and are not ambushed en route.

If the cultist waits until they're riding off to cut his way out, and tries to pry apart the papers when feasible instead of slicing them, can he slip out without her noticing?

Hahaha no she can feel it as soon as the paper shifts. She'll hop off her horse to go divest him of his knife.

Fuck. He tries harder on principle, but it's not like he was able to escape before he got himself trapped in a cocoon of paper that she controls with her mind. She can get another, smaller knife, and this time disarm him for good.

"Nice try." Back on her horse with her.

And nobody else manages to make a credible attempt at escape, unless you could struggling to no avail with their bare hands as credible. The lookouts at camp fetch a paladin to check them over for infiltrators, and then once they're cleared her mission is officially successful. 

Woo! That wasn't nearly as bad as she was expecting!

Is she going to object to them taking the prisoners off her hands? They'll try to get any relevant information out first, of course, but being a demon cultist is a capital offense in Mendev even if they didn't participate in sacking a city.

She understands that, she just wanted to make sure they could sift through them for anyone who hasn't in fact committed a capital crime, like if they were kidnapped or something.

Interviewing cultists is already thankless work if they don't have to sift through the inevitable lies that they were only there because a succubus mind controlled them into it, but luckily the crusade has an entire separate group whose job that is and they can make it their problem instead. They can head off to do that without complaint.

Mission accomplished! Yay!

It's not a glorious victory of the sort that will be spoken of in songs and stories for years to come, not like the miracle at Kenabres, but - soldiers fight much better if they think they're going to win, and one of the best ways to foster that impression is to keep winning battles without taking heavy casualties. Over the rest of the day Kybele might notice her fame trending up ever so slightly faster, as rumors spread through the camp, or she might not; even without it she's still the recipient of far more fame than she's ever had before.

It's getting harder to notice little upticks. Maybe Nenio can get her some sort of standardized strength test.

Nenio is happy to make use of her as a combination experimental subject and research assistant. Is she going to explain anything about why she's suddenly stronger, or just divert Nenio into theorizing until she's forgotten the original question?

This is just one of the ways domain'd people get stronger and it's finer-grained than a lot of the signals in other kinds of adventurer!

Then she can keep Nenio mostly on track.

Once the testing is done and recorded, how does she feel about agreeing to fail a save against color spray? And possibly deep slumber, depending on the results of the first one? There are a lot of possible outcomes for this depending on what traits her own empowerment shares with golarion empowerment and all of them would be really fascinating information!

Hmm, she'll agree to this with Iskander standing by out of range, right before bed when she's effectively declaring it safe to be unconscious anyway.

Then when she's ready to turn in for the night, she can see a bunch of pretty lights in front of her eyes and spent most of the next minute as various combinations of unconscious, blind, and stunned.

"How unexpected! It appears your improvements are a wholly separate phenomenon from the local kind."

"That doesn't surprise me much!" she remarks, collecting the confetti she scattered everywhere to compensate for being blind into a layer across the floor. "Good thing I'm starting to pick up a local flavor of magic."