As a promotional supplement for SPX 2011, Americus' maiden voyage into the convention world, MK and I thought it would be fun to create a guidebook to the world of The Adventures of Apathea Ravenchilde, Huntress Wytch, that appear as the story within the story of Americus.
MK had a lot of the characters and setting already developed, and we collaborated coming up with the spells and monsters. She wrote all the copy except for the monsters and spells I created, while I did all the design and illustration. We wanted it to be a cross between a high school textbook for new adventurers and a D&D manual.
You can purchase physical copies at any conventions that MK and I attend promoting Americus, but a full digital version can be downloaded here at no cost.