About this audiobook

Every map in the world ends somewhere. At the bottom of every chart, past the last named river and the final dotted trail, there is a line where the cartographer ran out of knowledge and simply stopped drawing. Most people never wonder what lies beyond that line. Thirteen-year-old Wren Voss has wondered about nothing else her entire life. When she discovers that her missing mother did not disappear on an ordinary expedition but walked deliberately past the edge of every existing map and into something the world does not yet have words for, Wren does the only thing that makes sense to her. She follows. What she finds at the place where maps end is not wilderness or ocean or open sky. It is a living geography that shifts according to who is walking through it, a land built from the accumulated shape of every journey ever abandoned, and somewhere inside it, her mother is waiting for someone brave enough to read the terrain.