The Reaper's Bones are pirates loyal to Captain Flameheart who bring chaos to the seas. If you want to play the villain, you'll need to know where to start, so here's where to find The Reaper's Hideout in Sea of Thieves.
REAPER'S HIDEPOT LOCATION – Sea of Thieves, Festival of Giving
The Reaper's Hideout is an archipelago in Sea of Thieves, located in square I12 on the world map. The best way to find it is to first find the Wanderer's Refuge or Plunder Valley islands, then sail east or northeast respectively.
Once you get close to the island, the sky and sea will become much darker, similar to the Fort of the Damned, which is not too far from The Reaper's Hideout. There are several small islands near The Reaper's Hideout, but you need the eastern one. Go to the large red tent where the Servant of the Flame NPC is staying.
The Reaper's Hideout is home to the Reaper's Bones faction and is the only place where you can sell loot to increase your reputation level. This is also where you can deliver Reaper's Chests, which spawn on the seas and are marked on the map by a black circle.