Random Old Children's Book Bleg

Does anyone out there on the internets have any information about an old book called Kintu: A Congo Adventure by old-timey children's author Elizabeth Enright? Unlike her other books, this one seems to have vanished down the memory hole which, when combined with the title, makes one suspect it's incredibly racist or something. But is that true? Conventional research methods -- Google, Wikipedia, using Google to find Wikipedia pages -- don't reveal much.