Carys has a mystery to solve. Risking the dangers of the sea and cliffs, Carys and her friend, Jago, face their greatest fears in this action-packed family adventure.

Sharon Tregenza was born in Penzance, Cornwall. She, her husband and two children have lived in Cyprus, Dubai, Sharjah, Bristol and Pembrokeshire and she now lives in Box, outside Bath. Her first children's book Tarantula Tide won the Kelpie Prize and the Heart of Hawick Award and was longlisted for the Branford Boase Award. She has since completed an MA in Creative Writing from the University of Wales (Trinity St David) and an MA in Writing for Young People at Bath Spa. The Shiver Stone is her second novel.