Tina O'Hailey is the author of animation text books Rig it Right and Hybrid Animation, and the novel Absolute Darkness-part of the Darkness series. She is a professor in animation and game programming, caver and occasional mapper of grim, wet, twisty caves (if she owes a friend a favor or loses a bet), whose passion is to be secluded on a mountain and to write whilst surrounded by small, furry dogs and hot coffee. Tina was once struck by lightning.