Time travel, family, consequences and yoghurts. Oh, and gerbils.

'I don't want my life controlled by a fridge.'

Humming in the kitchen of Bugg and Dilan's new home is a huge, mysterious fridge. Even when Bugg turns off the power, the light stays on. Plus, it's full of strange-looking yoghurts in glass jars with wax-paper lids. Should they? Shouldn't they? They do, but the yoghurts take them back to 1974.

What follows is a desperate scramble across time and space, in which the siblings discover a 40-year-old time crime and become painfully aware that small changes they make in the past can have huge consequences for their future. Aided and hindered by go-for-it gerbil-fancier Lorna, they try to put everything back in order before time - and the yoghurts - run out completely.

Another delightful, family-friendly adventure from the author of the Sunday Times Children's Book of the Week, SHRUNK!