@CollectorOfMyst @shylarah Beautiful post! Honestly, I think it works really well and makes sense for him to kind of unload at this point. This trip has been pretty stressful for the two of them and some manner of release was inevitable. Ziotea already let out some steam on Rose (and the room), so I think Oren can be forgiven for going on a mini-tirade.
Now, while I love the idea of Oren suggesting an investigation into everything they've encountered so far, there is a bit of a conundrum here that might require you to edit a few things in the post. It's a tiny thing, but Rodion is already in Cero at this point, so he and Ziotea investigating the archives isn't possible. Also, there isn't much time for them to do much of an investigation once they arrive back in Magnagrad, since they are due to arrive in Cero with the rest of the warband in a few days' time. Now, this doesn't mean that some kind of investigation still can't take place. Only, it won't take place at the Seminary, but instead on the Karamzina.
For the sake of streamlining things, I'll let you in on something that Oren and Vivica
@Scout would probably be aware of. The Karamzina was originally meant for Mother Indira. It was supposed to be the vessel that would take her on her post-invasion scientific expeditions into El, but she was forced to embark on another ark when she was called to fight along with everyone else. To remind you, the Church wanted a powerful summoner on the warfront and Father Dara was supposed to take this role, but since he absconded from the Seminary, the task fell to her instead. Thus, the Church gave the Karamzina to Warband Phoenix for their support mission. Oren would most likely be aware of this fact, and would wonder if perhaps Mother Indira left any clues on it.
I know it sounds kinda out of nowhere, but I think it's a decent way of fixing the time issue. Let me know what you think!