To the north can be Callistege, floating motionlessly. Exhaust conversation options with her to gain 40 XP and you'll eventually make her come back. Now you decide her fate, whether you want to help her ascend into the datasphere or make her remain human - sealing herself off from her echoes.
Tybir can also be here, in the northeast, working out his feelings with Auvigne.
Finally, there's Mazzof. You can help him out of his illusion by giving him a shin, which earns you the All-Burning Aura cypher.