Misery Guts by Morris Gleitzman

'I'm only going to say this once more,' said Dad, 'so listen very carefully. We are not ever, under any circumstance, going to Australia.'

What does a kid do when his Mum and Dad are misery guts?

Move them to a tropical Paradise, decides Keith. That'll cheer them up.

It's a brilliant plan-if he can pull it off.