The group in my first game skipped Whiterook entirely, they were able to navigate the ship around the net (thank you natural 20) and they did not stop to meet the guards so they never found out that Uliyara visited the village recently and that during this visit Whiterook was attacked by her aunt's forces. They found out about Haltani's true story when the winter wolf revealed her real identity at Naldak's Point. So they never ran into the 'dilemma' the second group did:
The second group found out about Uliyara on the sailing boat when they travelled upriver to Dalun. They stopped to visit Whiterook and learned about the trade envoy and the attack on the village. I did not manage to find out if Uliyara knew about the attack or not or if she was just 'abused' by her aunt to get into the village. I assume she did not. They players asked her about it, of course. Unfortunately I did not think about that before so I came up with some excuse about her evil aunt. How did her aunt find out about Uliyara as a trade envoy? If Nadya's sister kidnaps Uliyara on regular base, would you tell her that you send Uliyara to Whiterook? I don't think so.
The second thing was: how Nadya comes to the idea that the Pathfinders are spies? Would a spy ask for permission to travel around with her daughter? I think not, they would just take her and run off. And further, why would somebody ask the daughter of Saarbotten's leader who wants to kidnap Uliyara to safe her? Does that make sense? After a few Sense Motive rolls the group finally blieved, that Kiryena is not like her mother and just wants to guide Uliyara back to Dalun safely.
The third thing was: why does Nadya let her daughter walk around without a bodyguard? It seems to me that she's in danger all the time to get kidnapped by the Whiterook guys or her aunt. Nadya obviously knows that her daughter is/was outside Irrisen and even within the Irrisen borders she's not safe. Her mother also knows about her 'alter ego' Haltani, but even when in disguise she gets tracked down.