Andrew Lost in the Jungle — J.C. Greenburg

Andrew, Judy, and Thudd have landed in the Australian rain forest. They must find a way to the river and Uncle Al, but they're still the size of bugs! They dodge rhinoceros beetles and tree kangaroos, dangle dangerously above the jaws of a carnivorous plant, and have a close encounter with a carpet python. Will they ever reach Uncle Al? Or will they be shrunken Down Under for good?