BELLE is a whizz on computers. She spends so much time on the internet that the glorious summer holidays are passing her by.

When Belle and her brother discover a spy satellite on the roof of their shed, Belle has to find a way to use her skills in the real world and fast.

Belle’s Dad is inventing something exciting. But what is it? Dad is very secretive and won’t even tell his own children. But his hand is forced and he has to ask the kids for help.

This is just the start of Belle’s thrilling and thoroughly modern adventure.