Book description
For Philip, Dinah, Lucy-Ann and Jack, the holiday in Cornwall is
everything they'd hoped for - until they begin to realize that something
very sinister is taking place on the mysterious Isle of Gloom. But
they're not prepared for the dangerous adventure that awaits them in the
abandoned copper mines and secret tunnels beneath the sea.
Enid Blyton, who died in 1968, is one of the most popular and
prolific children's authors of all time. She wrote over seven hundred
books, which have been translated into many languages throughout the
world. She also found time to write numerous songs, poems, and plays,
and ran magazines and clubs.