About This Book
The narrative follows a small band of adventurous young women who live aboard a yacht and pursue study and exploration, encountering a series of mysteries during a winter cruise. They investigate a strange tapping and a blue face in the night, tangle with a laboratory accident involving a quick-action gas, become trapped in an old museum, weather a violent storm, and reach a remote island with an enigmatic blue god and phantom wireless signals. The girls use ingenuity and courage to unravel hidden dangers, survive surprises and an unexpected welcome, and uncover the island's secret before returning to safety.
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