I belong to Goodreads due being a avoid reader. I got a chance to possibly ask him a question I sent the following question this is a spoiler from later books in the Dresden Files so read no further if you do not want spoilers:

Why did Dresden not become the new winter lady? You established that mantel preferred to go to where the knight mantel was if it was close. As well as the fact that the mantel changes the person it goes to i.e. Molly being able to use the cell phone. It felt unnatural that it went to Molly at least to me and to others who I talked to about it.
I hope that my question is picked if it is will share the answer. Sadly the message I got that asked me to ask a question said that everyone that gave a book of his 5 stars is even the shot with only five questions going to get chosen and asked.