Hugh Howey 
Sand Part 3: Return to Danver [EPUB ebook] 

An eldest daughter is a father’s curse. Vic knows this. She knows she was never supposed to be the one. But her father taught her to breathe beneath the sand, taught her how to dive deep and find the treasures of the buried past. He taught her brother as well. When she hears of Danvar’s discovery, it feels as though fate has slipped her by. If the rumors are to believed, that is. And while she has her doubts, her missing brother sends her on a hunt of her own. Cities are not the only things that get buried and forgotten. There are families, too.