Ancient shard

Ancient shards are obtained from monsters found within the Catacombs of Kourend (excluding ghosts), with a drop rate of 1 in (500 - NPC's hitpoints). They are used on the altar in the centre of the catacombs for quick transportation to several areas (and are consumed on use):
 * Demon's Run - northeast corner with the greater demons.
 * Dragon's Den - northwest corner with the brutal black dragons.
 * Reeking Cove - southern area with the deviant spectres.
 * The Shallows - southeast corner with the King Sand Crabs.

Three can be used with a darklight to create an arclight, a degradeable variant of the darklight that provides stats superior to the abyssal tentacle when used against demons. Three shards provide 1,000 charges; up to a maximum of 10,000.

Dropping Monsters
All NPCs (excluding ghosts) in the Catacombs of Kourend drop the shard at a rate of 3/2(500-NPC's hitpoints).


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Trivia

 * Prior to the 16 June 2016 update, ancient shards were lost upon death.