I believe this is the right place to ask this. So....I'm currently reading The Infernal City, and I've been wondering.

How successful were these books, and do they plan to make more by various authors in various eras?

I'm not sure exactly how "successful" they were, but personally, I enjoyed them thouroughly. The second one definetly has more of the action compared to the first. And personally, I'm all with you when it comes to more books. There hasnt been anymore than Infernal City/Lord of Soul, but I'd love to read some more. Think of all the fragmented storylines they can expand upon or how much they can create.

I don't think they did very well. I thought the Infernal city was mediocre.

I liked both books, as for sales? I have no idea.