In Search of a Missing Friend (EN)

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What have the Black Hand Gang done? Have they kidnapped Wills, a brilliant young inventor? Where is he? Where have they taken him? No one knows where Wills has gone – and his best friends, the twins Harry and Camilla – are very worried. Last time they saw him, Wills was with the Black Hand Gang – and he looked extremely unhappy! Luckily, Wills has left the twins lots of clues to follow – maybe they’ll find him soon. You can solve the mystery, you can find Wills. You’ll discover his fantastic inventions too!