Originally published with the alternate title "The World is Taboo," this story from Murray Leinster recounts the valiant efforts of intrepid explorer Calhoun to save a race of outcast blue-skinned beings afflicted with a crippling health condition. Will he be able to make a difference before the entire planet succumbs to the disease?
- National Poetry Month
- Mine a Good Book
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- How Does Your Garden Grow?
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- National Poetry Month
- Mine a Good Book
- 250th Anniversary of the American Revolution
- Earth Day Reads
- 2025 Libby Book Award Winners and Runners Up
- How Does Your Garden Grow?
- Always Available Audiobooks
- Great reads without the wait!
- Everyone Reads: Spanish Titles for Young Readers
- Adapted for Young Readers
- See all audiobooks collections