Bat bones

Bat bones are a type of bone which are dropped by bats and giant bats. When buried they give 5.3 Prayer experience, 17% more than normal bones, which give 4.5 experience. Using bat bones on a prayer altar in a dungeon in Daemonheim gives 21.5 prayer experience, four times the amount of prayer experience obtained through burying. Bat bones became available to F2P after the Dungeoneering skill was released.

Members will need bat bones for some quests, including Merlin's Crystal, Forgettable Tale of a Drunken Dwarf and Watchtower.

Cost and XP Analysis
Bat bones