Sarah Crossan has lived in Dublin, London and New York, and now lives in Hertfordshire. She graduated with a degree in philosophy and literature before training as an English and drama teacher at Cambridge University.

Since completing a masters in creative writing, she has been working to promote creative writing in schools.

The Weight of Water and Apple and Rain were both shortlisted for the CILIP Carnegie Medal. In 2016, Sarahwon the CILIP Carnegie Medal as well as the YA Book Prize, the CBI Book of the Year award and the CLiPPAPoetry Award for her novel, One.

Nicola Colton is an Irish illustrator living in Bristol. Her style is whimsical with an emphasis on colour and she likes to create characters full of warmth, humour and playfulness.

She is passionate about children's illustration and her first picture book was awarded a White Raven by the International Youth Library and won the Literacy Association Ireland book Award.