Calen spent most of his day attempting to fix the walls of the temple, and since he had a lot of free time on his hands, he experimented with turning mans to divine power and vice versa.
The results were mixed - he had no problem reshaping divine power into magic, but he had no idea how to do it the other way around. Still, considering what he was doing it was at least a helpful discovery.
He couldn't fix everything because he lacked the architectural knowledge needed to fill some parts, but he managed to restore a significant portion of the temple and make it look somewhat presentable.
More importantly, he managed to find a few hidden things when he was cleaning it - the first and perhaps the biggest one were the stairs, which apparently weren't actually destroyed by the Krakee, but rather remained hidden.
