Ciaran Murtagh is an actor, comedian and author. He has appeared in and written for two series of The Slammer on CBBC. His other TV writing credits include Dick and Dom, Planet Ajay, Scoop and Hotel Trubble. Piccadilly also publish his award-winning GENIE series. He lives in London. Follow Ciaran at www.ciaranmurtagh.com or on Twitter: @CiaranMurtagh.

Tim Wesson is an illustrator and author who draws in different styles for both children and adults and has recently written and illustrated the MEGA MASH-UP series, published by Nosy Crow, for children aged 6-9. His latest book in the series is called Cowboys v Trolls in the Arctic.