Sack of Bones

Sack of Bones are the remains dropped by the Marrow Reaper.

Sack of Bones give 100,000 Prayer experience when buried. This can be increased by offering the bones in different ways:

1. 200,000 XP when used on an Altar.
   
2. 100,000 XP when consumed by a Bonecrusher.
   
3. 250,000 XP when consumed by a Bonecrusher (X).
   

The full list of possible XP boosts can be found at Prayer.