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Bilbo Baggins has lived a solitary life, and finds it helps him in surviving when the Outbreak happens. So when he's saved by a small fraction of the military that has managed to survive he's thrust back into humanity, fighting to make his way to Erebor, a safe haven for all survivors.
On his way back to the Blue Mountains from a meeting in Rivendell, Thorin is ambushed on the forest path. His would-be attacker is not at all what he expected, however - instead a poor and hungry hobbit looking to steal his food. Fortunately for Thorin, this hobbit makes a god damn awful thief.
Hundreds of years after the whole world went up in flames, Thorin works as a traveling blacksmith and pedlar for his family's spices and wines. When his grandfather's map shows him an abandoned road that would cut two weeks off his travel time, Thorin is eager to try it. The road crosses the Misties near part of the Burn, but he figures he'll be able to make it past the danger without too much trouble. Then, he's attacked on the road and left to die. Rescue comes, but sometimes being rescued comes at the price of one's heart.
When Thorin grudgingly decided to visit his sister and her family in the Shire, he expected to find a slow, sleepy town out in the country.
He had not expected that the seemingly peaceful Shire covered a dark secret. And he had certainly not expected to develop feelings for a small, curly-haired man. Nor for the same man to somehow be deeply connected to a series of strange and frightening disappearances.