It was only some 5 hours after the meeting that the army started marching again. Although tired from the constant battles, the soldiers were in very high spirits after the victory against the two kingdoms.
Aethion had managed to successfully divide the souls of Lieara and the demoness and had started with interrogating her, the other two demons, and the two kings.
The kings were the ones that started talking first. It wasn't as if they were weak-willed, but that torturing the soul was many times more painful than torturing one's fleshly body. The demons were used to manipulating souls, torturing them, getting tortured sometimes by other demons and such, which made them more resistant to this kind of 'interrogation'.
Unfortunately for Reign, the two kings had no idea what the final plan of the demons was, or where the final demon was located at as they only briefly talked with him. They mostly let the demons do that, which led to them not knowing a lot at all.