Learn more about the characters from The Sunday Times bestselling author S.T. Gibson's Evocation in this gorgeously illustrated prequel novella to The Summoner's Circle series. It takes a lot of commitment to make a marriage between a modern ceremonial magician and a tarot witch work, but when a malevolent entity takes up residence in Rhys and Moira's home, their love will be pushed to the limits. Brewing up a solution is easier said than done when your magical styles are polar opposites; throw a psychic ex and a secret society in the mix, and things are bound to get messy.