In the room that used to be Jefred's quarters, Menek finds a false panel in the floor that contains a leather-bound book.
Within, Jefred chronicles his time since first being summoned to the Observatory by Menek.
He finds that, while the party was away on missions (before the invasion), the employees of the SAED members intermingled far more than anyone was aware of. Jefred had been involved in a playful courtship with Scraw during the party's ventures into the Abyss, which had ended when it was decided that Scraw would come along to the Material Plane. It is also strongly hinted at that Alyet had taken a liking to Oldaraphan, much as a young boy would take a liking to an old wise man, and would visit him frequently.
The relevant information comes toward the end. Jefred
The Observatory is under threat of attack, one entry muses. A giant continent full of highly advanced cities has appeared below us, quite out of nowhere. The Raven Queen has summoned all available hands to the hangar bay, to prepare in the event of an attack. I do hope they're not too hostile.
The next entry:
Menek and the others were driven from the Observatory. It's been taken over by a bumbling lot of fools, if you ask me. They hardly know how anything works and can't be bothered to figure out where anything is. I was able to slip away here, to the Estate, almost effortlessly. I do believe there's a chance we can retake the Observatory, if all goes well.
And then another:
We're under attack. Again. Whoever this is, they know what they're doing. The Prexians are hopelessly outmatched by a force far smaller than their own. I fear for my life and the lives of the others.
The final entry:
We're being rounded up. I fear I don't have long. Menek, if you find this journal, I am sorry that I failed you.