The Nice House by the Sea (The Nice House by the Sea #10)

It's been years since Walter and Oliver said a single word to each other... and it's taken the literal end of the world to put them face-to-face again. Now the fate of the entire human race depends on these two being able to put aside the hurt they caused each other - but are either of them capable of it? And can they do so fast enough to stop the body count from rising?