Q1: Can I unlock the Book of Bones chamber solo, or does it require a coordinated squad?
The entire sequence can be completed solo, provided you carry delayed-fuse fire grenades or lingering area-of-effect fire spells to ignite the four braziers within the 1.5-second timer. Teams of four find the timing significantly easier, but solo clearing carries no mechanical penalties or reduced rewards.
Q2: What happens if I lose one of the five Marrow Relics before unlocking the door?
Relics are flagged as essential quest inventory items and cannot be sold, destroyed, or traded. If a relic falls out of bounds due to an inventory desync or physics bug, it automatically respawns at its original discovery point after a single full server-day cycle (48 real-world minutes).
Q3: Does unlocking the true ending overwrite my current campaign save or lock me out of New Game Plus?
Completing the ossuary sequence does not wipe your active progress. It creates an alternate branch clear on your save profile, unlocking the true ending cutscene while leaving your standard world state accessible via fast travel shrines. You can still initiate New Game Plus at any point from the main sanctuary.
