From the Journal of Hrogar

So, while we were back in Sigil getting some supplies we need if we are to have a chance against our current target, I finally caught up with Keniroh (or more specifically, he finally caught up with me). After updating him on current matters and the important details since last we saw each other, he believes he can help the group in my absence.

This means I can finally move on to try to raise an army that can challenge the Aboleths in their primary city. I'm heading back to the material plane, and once there will travel to some of the places I visited before with Keniroh and also some other kingdoms that may be sympathetic to our cause. I'll have to be careful, though. It sounds like Tupper was captured and turned to the allegiance of the Aboleths. I must make sure to travel in a hidden manner so as not to be captured myself.

Hopefully, I will be able to raise a strong enough force to seriously threaten the master Aboleth in its fortified city. And hopefully the others will be able to take care of the other Aboleths while I accomplish this task. May the gods be with us.