What do You think about Prince Of Lies (1993)?
I liked this book a bit more than the rest of this series. The coolest stuff was how the gods had to interact and all the politics that take place on the relative planes. Of course Cyric is the god that you just love to hate, and all of the other gods are so stuck in their ways that Mystara can't get them to be of much help to her. Gond makes these crazy suits of armor for Cyric that can't be hurt by magic, and he puts them on some of his collected souls and makes them run amok in the realms, especially in Zentinal Keep. Eventually, Mystara raises her exlover to the level of godhood and he takes over some of Cyric's profile. Goodness reigns...
—Jesse