The draugr is a corpse of Norse myth and saga that lies in its barrow guarding its own treasure, falling upon grave-robbers with overwhelming strength and at times changing shape or swelling in size. One of the archetypes of the tomb-guardian undead, it also shaped the later image of the "wight."
Its fixation — unable even in death to release what was its own, and so keeping the grave — shares a register with the dread of a ledger that does not close even after the end.