Nightmare Bones

Nightmare Bones are the remains dropped by the Nightmare.

Nightmare Bones give 25,000 Prayer experience when buried. This can be increased by offering the bones in different ways:

1. 50,000 XP when used on an Altar.
   
2. 25,000 XP when consumed by a Bonecrusher.
   
3. 62,500 XP when consumed by a Bonecrusher (X).
   

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