From the moment Nancy Drew boards an ocean liner leaving for New York, she becomes involved in a new and dangerous mystery. A man on the pier gestures to someone on board in the sign language of the deaf. Beware of Nancy Drew and NE, he signals. Who is NE? Can it be Nelda Detweiler, A young South African who shares a cabin with Nancy, Bess, and George? When Nancy learns that Neida has been accused of stealing a diamond bracelet in South Africa, she wonders whether the girl is a thief or the innocent victim of a vicious plot.Keene, Carolyn is the author of 'Mystery of the Brass Bound Trunk ' with ISBN 9780448095172 and ISBN 0448095173.