As told by Ploon Kloovs:
Angar Battlelover went off alone into Limbo to find his false god, while the rest of us followed the Githzerai’s directions to a portal to the Abyss. This proved as inaccurate as all the directions we’ve had so far, and instead we arrived on the Plane of Air. The lethargy was there too, and I had Feredir begin treating the locals, while the rest of us began investigating a murder spree.
In the end, we caught the blue bugger in the act and put him down, although he did kill me first. Then we were directed by a ghost girl to yet another portal, perhaps to the Abyss.