"A book with a big brain, big laughs and a big, big heart." - Frank Cottrell-BoyceAn extraordinary novel for anyone who's ever been curious. When Albie's mum dies, it's natural he should wonder where she's gone.

His parents are both scientists and they usually have all the answers.

Dad mutters something about Albie's mum being alive and with them in a parallel universe.

So Albie finds a box, his mum's computer and a rotting banana, and sends himself through time and space to find her... "Christopher Edge's warm hearted writing sucks you in from the start with a sparkling take on parallel worlds, fuelled by a delightfully fresh understanding of quantum physics and a fearless ability to take on life, loss and dreaming big while never talking down to his readers.

Bananas will never be the same again. I have one complaint about this book. I wanted it to be longer." Samira AhmedCover illustration by Matt Saunders.