On the left will be a building with an open door. Black bonecharms are rare and powerful, offering exotic Traits.Additionally, you cannot learn the Traits from Black bonecharms. In order to get to it, enter the Vault behind the Dining Room in the present, then warp to the past and knock down the statue before returning to the present and crawling through to a path to the Boiler Room (warp under the desk at the far end to come out on the other side of a barricade. Bonecharm is inside Byrne’s desk, on the third floor of the Overseer compound The blueprint and the bone charm are in the basement. From the red building with the pub, jump off the rooftop to a balcony on the building opposite the pub. This bonecharm is located inside a safe in the boiler room.
If Stilton is alive and well, the office will be built in the new version of the present, and the bonecharm will be on his desk. The month is the first digit, and the date are the other two digits. In the Grand Palace itself, check the throne room for a bonecharm on the throne itself.
Reprise your role as a supernatural assassin in Dishonored 2! This is my experience, too. You can reach it by summoning the elevator to the top floor, and crawling up through the hatch in the elevator to find an alcove with the bonecharm in it. Go into the office and break the china cabinet to find a bonecharm. Search the shelves to the left of a large wall for a button below some bottles that opens up the Duke's Safe Room and Vault.