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 seven, the Secret Seven have a fantastic new hiding place, but somebody else has been using it too. Whoever it is is going there at night, and the gang are determined to catch the cheeky intruder, whatever it takes
Solve the mystery!
The story was first published in 1955. This recording has been amended since the previous version(2013) to revert to the original text wherever possible.
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