Amy Alward is a Canadian author and freelance editor who divides her time between the UK and Canada. In 2013, she was listed as one of The Bookseller's Rising Stars. Her debut fantasy adventure novel, The Oathbreaker's Shadow, was published in 2013 under the name Amy McCulloch and was longlisted for the 2014 Branford Boase Award for best UK debut children's book. Her first book written as Amy Alward, The Potion Diaries, was an international success and the second novel in the series, The Potion Diaries: Royal Tour will be published in August 2016. She is currently travelling the world, researching more extraordinary settings and intriguing potions for the third book in the series. She lives life in a continual search for adventure, coffee, and really great books. Visit her at AmyAlward.co.uk or on Twitter @Amy_Alward.

Emma Carroll is the multi award-winning author of many bestselling historical stories, including Secrets of a Sun King, Letters from the Lighthouse, The Week at World's End and A Night at the Frost Fair.  With a background as an English teacher, her stories are often magical, and always led by a cast of impressive female characters.  She lives in the Somerset hills with her husband and two talkative terriers.
 

Michelle Harrison lives in Essex and has a son, Jack, and three cats: Marmite, Sorsha and Widdershins. Her first novel, The Thirteen Treasures, won the Waterstones Children's Book Prize and was followed by The Thirteen Curses and The Thirteen Secrets. Michelle has since written One Wish, a prequel to The Thirteen Treasures books; The Other Alice, which won the Calderdale Book of the Year Award; and the bestselling Pinch of Magic Adventures: A Pinch of Magic, A Sprinkle of Sorcery, A Tangle of Spells, and A Storm of Sisters.