The Brief History of the Dead
This is a tough one to listen to - at night - in the winter. For a post-apocalyptic novel, this has to be one of the most depressing ones I've encountered, picking over the memories of the dead and the living in detail, along with Laura's excruciating Antarctic journey. I managed to stick with it, for the quality of the storytelling, but I nearly gave up a few times, and never have I so rooted for a protagonist to die.