Cataloguer's note: There are three different versions of this book available, which include extended or altered scenes and three distinct endings. The different versions are denoted by the direction of the compass on the top right of the cover. Source: The New York Times

Electronic book.

"Zach Wells, a laconic geologist-slash-paleobiologist, has the trappings of a comfortable life, yet is not contented. He's expert in the geological history of a cave in the Grand Canyon, but less so where his wife and daughter are concerned. And when his daughter develops unusual vision problems and has a seizure, the world of this family of three crumbles. Powerless in the face of his daughter's slow deterioration, Wells finds a note asking for help tucked into a jacket he's ordered online, and sets off on a quixotic rescue mission."--Provided by publisher.

Electronic reproduction. New York Graywolf Press 2020 Available via World Wide Web.