What Fantasy Role-Playing Game would be complete with out a book full of creatures you can hunt and kill? For the d10 System, the Codex of Creatures fills this void. The Codex contains more than 400 monsters from myth, legend, and our twisted imaginations for you to plague your players as they journey through the Lady's Rock seeking fame and fortune. The Codex of Creatures contains detailed instructions on how to covert the monster from your old systems for use in the d10 System. That's right - all that money didn't go to waste. Each and every one of your favorite creatures can be brought into the d10 system with just a little time. It's quick. It's easy. It means those old books still have value.