A sensitive author again combines her interest in people and her skill in weaving good mystery in a story ""told"" by Benita Dustin, an American girl, who has come to live with her aunt in Cape Town, South Africa. A series of odd occurrences in her aunt's garden intrigue Benita and she tries to sort out and align several clues, -- an imprint of a tiger's claw, a man with a blue thumb and Aunt Persis' family history. Benita is annoyed at neighbor Joel's pranks and doubly shocked when she learns Mr. Dustin intends to marry Joel's mother. While solving the external mystery, Benita comes to understand that her prejudice against Joel is very much like the apartheid in South Africa, a condition Benita deplores. Here is a first rate suspense story, a sound exploration of human relations and a fascinating glimpse of a troubled land, all in one book.