A quiet boat trip on an Amazon tributary to do plant research turns into a dangerous encounter with thieves and superstitious Indians for Morgan and twins Jan and Jill.
- ISBN10 0394882946
- ISBN13 9780394882949
- Publish Date 12 September 1986
- Publish Status Remaindered
- Out of Print 1 June 2017
- Publish Country US
- Imprint Random House Books for Young Readers
- Format Hardcover
- Language English