Solve the mystery with the Secret Seven - everyone's favourite detective club! These timeless stories are perfect for young fans of mystery, adventure or detective series.
In book 15, the Seven are determined to help out. They are very fond of Tolly and his sick horse, Brownie, and need to find them somewhere to hide out - somewhere that dangerous horse thieves will never think to look. But where? Solve the mystery!
The story was first published in 1963. This recording has been amended since the previous version (2013) to revert to the original text wherever possible.
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