Jim Markus was born in Michigan, raised on a decommissioned farm, and studied at Michigan State University. His first book, "Write with Lions," was released in 2013. This book was used for kids' writing workshops in Chicago, Illinois. In the following years, Jim studied improv at Chicago's iO Theater, co-founded a society for writing duelists, and toured with his show at conventions across the United States. In 2018, he released a short book about writing duels under his stage name, Captain Jim Blood.