Once a year, the dogs in the paintings in the National Gallery have an exciting night out.

They all have a few hours to run up and down the grand staircases, to chase each other and to go exploring.

One night, however, four of the dogs have too much to eat and sleepily climb back into the wrong works of art.

The gallery has never been so popular - people come flooding in from far and wide.

What a sensation! This fun-filled story, with superb illustrations by Alan Curless, and reproductions of National Gallery paintings, provides a charming introduction to great art for young children.