J. L. Sullivan writes young adult novels inspired by gritty urban environments and the fantastical tales that percolate within abandoned buildings and desolate alleys. He began his writing journey in high school with a local newspaper before venturing into creating writing in college where he found himself lost in contemporary stories with magic summering just underneath the surface. His debut novel, From Brick & Darkness, is a dark reimagining of an ancient myth that won multiple awards following its spring 2022 release. Its sequel, From Ash & Darkness, comes out March of 2025. He currently lives in St. Louis with his wife, two daughters, and a dog named Princess Penelope Picklesworth.