Over the edge

a mystery in Grand Canyon National Park

While she studies condors in the Grand Canyon a scientist's life is threatened, and the strange, hostile, teenage computer whiz in her family's foster care might be involved.

National Geographic
2008
9781426301773
book
Lexile: 
740

Holdings

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185765454544621789248718360172GCBS212GCBS227466FIC SKU100015825759371662467957
278535662726332386248718360172GEI228GVN0086837FIC SKU100016377825731736800991
3261061666815415752487183601723398T 3306150FIC SKU100016407292551640729255