Fi, Fy Nhad a Phendraw'r Enfys

My name’s Arwel, and I know two things for certain:

1. My mum and dad hate each other, and they can't hide it anymore.

2. They’re both keeping a secret from me, but I can’t figure out what.

Things aren't going great for Arwel Allbright. His dad's acting weird, his mum too, and all he wants is for everything to go back to normal, to three months before when his parents were happy and still lived together.

When Arwel sees a colourful, crumpled flyer fall out of Dad's pocket, he thinks he may have found the answer. Only problem? The answer might just lie at the end of the rainbow, an adventure away.

Together with his best friends, Del and Seb, Arwel sets off on an unforgettable journey to try to fix his family, even if he has to break a few rules to do it...