Trouble's Safe

Davin is a professional scavenger called a "Shelley" from Mary Shelley who wrote Frankenstein. He's a rare breed, willing to hunt and kill the undead in order to pick their pockets for any possible valuables that were present before turning.

Jewelry, weapons, food, water, shelter, all necessities for anyone who wants to survive in this hell hole. Small factions, towns, and pockets of civilization still exist, and one particular zealot, Papa "Troubles" Longshanks has been missing from his gang for almost 3 months.
With his crew on the brink of civil war, and unwilling to gather a search party, they abduct Davin and give him an impossible proposition.

Find the body, rob the body, bring back the key to the safe as well as proof of Troubles passing, and he will be permitted to live and have a handsome reward.
The only problem is that he has to traverse thousands of miles alone to a destination that is only a hunch.

Find the body, rob it. Find the body.