The hotly-anticipated next novel from NUMBER ONE bestselling author, David Walliams.

Jack's Grandpa ...

⚫ wears his slippers to the supermarket

⚫ serves up tinned tongue for dinner

⚫ and often doesn’t remember Jack's name

But he can still take to the skies in a speeding Spitfire and save the day ...

An exquisite portrait of the bond between a small boy and his beloved Grandpa – this book takes readers on an incredible journey with Spitfires over London and Great Escapes through the city in a high octane adventure full of comedy and heart.