The treasure hunters

Gilda Baxter decides to call unannounced at her fiance's cottage on a surprise visit... only to learn on her arrival that his boat, badly damaged, had been found floating overturned in the bay, and that he is missing - presumed drowned... Diana Russell is on a mission to help her twin sister stop a man from blackmailing and ruining her life. For her plan to succeed, she must put herself in great danger - but sometimes best laid plans have a habit...