Gleason's Gielinor Guide

Bat bones are the remains obtained from killing bats and giant bats. Players will need bat bones for some quests, including Merlin's Crystal, Forgettable Tale..., and Watchtower.

Bat bones give 5.3 Prayer experience when buried. This can be increased by offering the bones in different ways:

15.9 XP when casting Sinister Offering.
15.9 XP when offered at the sacred bone burner after the appropriate faith level has been achieved.
18.5 XP when offered at a gilded altar with two burners lit or at the Chaos Temple.
21.2 XP when offered at the Ectofuntus in the form of bat bonemeal.
25 XP when blessed and broken down into blessed bone shards and offered at the libation bowl, or 30 XP when offered with a jug of blessed sunfire wine. Virilis outside the altar will exchange noted bones for 10 coins each.

Prayer info

Source	Level	Quantity	Rarity
Bat	6	1	Always
Giant bat	27	1	Always
Albino bat	52	1	Always
Giant bat (Brine Rat Cavern)	27	1	Always
Dire bat	142	1	Always

	Skills	XP	Materials
Bat bonemeal	None	None	1 × Bat bones 1 × Pot
Blessed bat bones	None	None	1 × Bat bones
Ground bat bones	None	None	1 × Bat bones

Location	Members	Spawns	Map
Sisterhood Sanctuary		1	Show map

Date	Changes
31 May 2006 (Update)	The item's examine was changed from "Bones are for burying!" to "Ew it's a pile of bones.".