Strange things are happening. Banks are handing out free money, supermarkets can't charge for their produce and aircraft are refusing to fly. It looks like the world's biggest and best computers have all been hacked! George and Annie will have to travel deep into space to find out who's behind it. Lucy Hawking and Professor Stephen Hawking return with another out-of-this world adventure story.
The first in a series of books about the sister of Sherlock Holmes, which inspired the upcoming film of the same name, which stars Millie Bobby Brown. First published in 2006. Ages: 12+