If you're interested in seeing where I get some of my ideas and the amount of research that goes into my books, you can check out these pages for my bibliographies:

The Garden -- I've listed resources on the Iberian Peninsula; same-sex unions during the Medieval period; military history of the Iberian Peninsula; early paganism of the Iberian Peninsula ; blacksmiths; and Jewish legends.

Miserere: An Autumn Tale -- Sources on vampires, demonology, exorcism, and early Christianity.