Ashleigh and Aiden are thirteen-year-old twins who promise to always look out for each other. Aiden is more dedicated to the task than Ashleigh, but when it comes to matters of life and death, they both exhibit a fierce protectiveness that will change the course of their lives.

'We've been worried about Aiden too, Ash,' said Mum. 'He's always been such a ... predictable child. You're not the only one to have noticed the changes.'

Ash and Aiden Delatour are identical twins, living a privileged lifestyle with loving parents. In a world that has fallen apart at the seams, they want for nothing. All they have to do is be there for each other, no matter what.

But after Aiden suffers a terrible injury, he isn't the same brother Ash always relied on. Something has changed, and it will lead to a discovery that will turn their whole world upside down.

A brilliant and timely middle-grade novel from the bestselling author of My Life As An Alphabet and A Song Only I Can Hear.