Libellus Sanguinis

Libellus Sanguinis is a 4-book series with 4 released primary works first released in 1997 with contributions by Craig Bolin, Richard Dansky, Robert Hatch, Cynthia Summers, Richard Stratton, Jackie Cassada, Jason Langlois, Clayton Oliver, Mike Lee, Deird'Re M. Brooks, Joshua Mosqueira Asheim, and Lucien Soulban.