"Not what you were expecting?"Chrissa says creeping up on the men to examine the predicament. She patted the fool's shoulder in a kindly and sympathetic fashion. Moving fearlessly into the mists, the woman quickly vanished.
The sounds of prayers could be heard before a sudden whoosing sound and the intermitant whistling of wind as the fog began to be pushed from the room, along with anything else that was not secured. Pieces of parchment fluttered out towards the men, who instinctively stood back. There was the sounds of thumping and clattering as books previously on the shelves feel to the floor.
After a moment the wind passed and a check inside the room found the hermit dutifully checking and replacing the books on their shelves. The dust that was on the floor had been blown against the east wall and steel door along with the pieces of the broken bench.
OODM: Books in this day and age were not cheap, without a printing press all of them had to be hand copied. It could take years to write a book and decades to write a bible (extra care in writing that book!)