In 1917 Herrick turned Mitchell into a vampire. He cared for Mitchell after the transformation and showed him his idea of being a vampire. As long as Mitchell and Herrick killed humans they got along very well. Their realationship became difficult when Mitchell tried to stop drinking blood. They soon were fighting against each other. Mitchell tried to stop Herrick when he made plans for taking over the world. And Herrick could not understand that Mitchell did not want to drink blood anymore. However Herrick always cared for Mitchell and allways tried to win him back.