User blog comment:Nomad27/Predictions of what will Occur in Volume 10./@comment-42.60.28.51-20160313154242

As the intermission in volume 9 mentioned the emergency state of Draconic Kingdom and their request for Theocracy to aid them against the beastman, this is likely the plot to be used for volume 10. In essence, Ainz would be keeping an eye on the Theocracy to search for the mind-controller, and perhaps got wind of the request from Draconic Kingdom.

Plot part 1: The confrontation against Beastman and Draconic Kingdom

Plot part 2: The investigation and confrontation of Slane Theocracy.