Sarah Lotz is a screenwriter and novelist who pens novels under the name S.L Grey with author Louis Greenberg; YA novels with her daughter, as Lily Herne; and is one third of pseudonymous author Helena S. Paige. Lauren Beukes calls her 'a natural-born storyteller.

Like the hand reaching up from the dark well, she'll drag you into her thrall. You'll come up gasping.' Sarah lives in England with her family and other animals.

Mark Millar is the award-winning writer/ creator of Wanted and Kick-Ass and worked as an executive producer on their subsequent movie adaptations. He is also the Creative Consultant for 20th Century Fox in Los Angeles, overseeing their upcoming Marvel movies. His ten years at Marvel produced Civil War, the biggest-selling series of the decade, and The Ultimates, credited by screen-writer Zak Penn as his inspiration for The Avengers movie. The Ultimates was honoured by Time magazine as comic-book of the decade in their 2010 retrospective and has also been adapted into both animated features and video-games.

His Millarworld company has expanded in the last few years to include Kick-Ass 2, Hit-Girl, The Secret Service, Nemesis, War Heroes, American Jesus, Supercrooks and Superior. All of these creations are in various stages of production as blockbuster movies, Matthew Vaughn directing The Secret Service, Joe Carnahan directing Nemesis and Jeff Wadlow having just completed Kick-Ass 2.

In his native UK, he is editor and co-publisher of CLINT Magazine, CEO of television company Millarworld Productions and acts as an advisor on film to the Scottish government. In 2012, he was awarded an honorary doctorate by Glasgow Caledonia University for his services to film and literature.