In the twenty-second century, a sun shift has made it impossible for mammals to survive in the daylight, and ten-year-old Elvie and her caretaker, Flora, are studying the migration route of monarch butterflies along what used to be the western coast of the United States, hoping that something in the butterflies wing scales can be used to protect people from the sun and save humanity from extinction. Ages 10 to 12.Grades 4-6.

1. Monarch butterfly -- Comic books, strips, etc.; 2. Monarch butterfly -- Juvenile fiction.; 3. Monarch butterfly -- Migration -- Comic books, strips, etc.; 4. Monarch butterfly -- Migration -- Juvenile fiction.; 5. Global environmental change -- Comic books, strips, etc.; 6. Global environmental change -- Juvenile fiction.; 7. Environmental disasters -- Comic books, strips, etc.; 8. Environmental disasters -- Juvenile fiction.; 9. Graphic novels.; 10. Pacific Coast (America) -- Comic books, strips, etc.; 11. Pacific Coast (America) -- Juvenile fiction.; 12. Monarch butterfly -- Migration -- Fiction.; 13. Butterflies -- Fiction.; 14. Environmental disasters -- Fiction.; 15. Science fiction.; 16. Pacific Coast (America) -- Fiction.; 17. Dystopian fiction.;