'Follow the big blue'. That was the last thing Cam's father said to him.
Cam follows Big Blue - everybody does on the island of Cetacea. Their lives take place within his rules, delivered to them by enigmatic whale-talker, Byron Vos.
Byron was once a marine scientist but is now organizing an epic clean-up operation to revive the ocean after centuries of human greed and neglect. And yet Cam wonders if there is a more complex truth.
A truth that may be connected to his father's disappearance. Cam's quest to understand Big Blue leads him to new friends and shared adventures - but the truth, when he finds it, is more dangerous than ever he could have imagined.
After studying linguistics and working as a magazine writer and editor, Rachel Delahaye now writes for children and always has new projects brewing. Rachel was born in Australia but has lived in the UK since she was six years old. She lives in Bath and is married with two children and a dog called Rocket.
Rachel’s first book for Troika published in May 2022, Day of the Whale, was nominated for a Carnegie Medal