Everybody in Jack's family seems to be brilliant - apart from Jack and his downtrodden dog Zero.

Even his little sister can beat him at swimming. But Jack's uncle Parker has come up with a plan to make him and Zero shine: they'll pretend that Jack can tell the future!

If only they could foresee what chaos the plan will cause ...Helen Cresswell is the much-loved writer of over 40 children's books.

She's the author of classics such as "Lizzie Dripping" as well as having adapted "The Demon Headmaster" for television.

She has been runner-up for the Carnegie Medal four times.