"The Cartographers" by Peng Shepherd

Some places you won’t find on any map. Others are only found within them.

Nell Young has loved maps her whole life. Her father, Dr. Daniel Young, is a legend in the field and was once her hero, until he fired her and wrecked her career after an argument over a cheap gas station highway map. When he is found dead in his office at the New York Public Library, the same worthless-looking map is hidden in his desk. Nell soon discovers it is far more valuable than it looks, and she may have the only copy left.

What follows is a dangerous, imaginative mystery about family secrets, a conspiracy, and the power of maps. It’s a clever, twisty read for anyone who loves a puzzle.

This paperback is in acceptable condition and has been enjoyed by a pet, so expect some visible wear. It’s complete and readable, and you can find it at Dead Tree Dreams.