Aleš Košnar Book order (chronological)

Something very sinister is happening on the mysterious Isle of Gloom and the children are determined to uncover the truth!

Nothing is as it seems on the pretty Cornish coast. The Famous Five don't believe that anyone would deliberately lure sailors on to the rocks - but somebody is flashing lights from the old tower on wild and stormy nights. Who can it be? Can Julian, Anne, Dick, George and Timmy resolve the puzzle?