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The Case of the Disappearing Necklace (Colour Young Hippo: Sherlock Hound)
The Case of the Disappearing Necklace - Colour Young Hippo: Sherlock Hound Author:Karen Wallace A famous Egyptian necklace (rumoured to have magical powers) has been stolen. The villain behind the theft is none other than Professor Ha-Ha. But can Sherlock and Dr Whatsup stop him before he works out how to harness the necklace's magical powers and turn himself invisible?