The Dry, Jane Harper

Please note, the publisher has moved publication of this title to January 2017. They don't want it overshadowed by the election.

You lied. Luke lied. Be at the funeral.

Federal Agent Aaron Falk wasn’t going to go to his former best friend’s funeral. Too many memories and he hasn’t been back to Kiewarra since he and his father were chased out twenty years ago. Back then Ellie, his girlfriend was found dead and Luke was Aaron’s only alibi. Now Luke is dead, seemingly by his own hand. Aaron returns to his hometown and finds it slowly being sucked dry by the unending drought. His reluctant investigation into Luke’s death could be the spark that burns Kiewarra to the ground.

This is a great debut novel, wouldn't be surprised to see an Edgar headed Jane's way.