A rock formation shines beneath a skylight in Hang Son Doong.
VIETNAM – MAY 01: A rock formation shines beneath a skylight in Hang Son Doong. (Photo by Carsten Peter/National Geographic/Getty Images)
About Betsy Bird
Betsy Bird is currently the Collection Development Manager of the Evanston Public Library system and a former Materials Specialist for New York Public Library. She has served on Newbery, written for Horn Book, and has done other lovely little things that she'd love to tell you about but that she's sure you'd find more interesting to hear of in person. Her opinions are her own and do not reflect those of EPL, SLJ, or any of the other acronyms you might be able to name. Follow her on Twitter: @fuseeight.
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