Cerberus

Cerberus is a level 318 hellhound boss that is located in her lair, deep beneath the Taverley Dungeon in the cave entrance in the north-east part of the hellhound area which is found beyond the poisonous spiders. There are three identical lairs guarded by the Key Master. Players can choose whichever lair to fight Cerberus. Cerberus occasionally drops Key master teleports (1/64), which can be used to teleport to the area immediately; otherwise, players typically will get to Cerberus through the regular method of running from Taverley or Falador.

Cerberus requires both a Slayer level of 91 to kill and a Slayer task of Cerberus herself or hellhounds. In the event of the latter, Cerberus can be killed while under the effects of the wild pie, provided that it boosts the player's Slayer level to 91 or higher. It is the only monster to drop primordial, eternal and pegasian crystals, which can be attached to the Dragon boots, Infinity boots and Ranger boots respectively, providing best-in-slot boots for Melee (Primordial boots), Magic (Eternal boots), and Ranged (Pegasian boots). In addition, she is also able to drop a Smouldering stone, which when combined with a dragon axe, dragon pickaxe, or a dragon harpoon can add a "heat element" to the tools, allowing them become an infernal axe, infernal pickaxe or infernal harpoon, respectively.

If a player has recently fought the boss, a line of fire will spawn between the entrance and the boss; stepping over this will deal 5 damage each way. The line of fire seems to be bugged, as it will not despawn unless the challenger dies to Cerberus or goes back through the line of fire after it respawns. Cerberus will restore all of its health if there are no players in its lair (it only has an examine option when this happens).

A dwarf multicannon cannot be set up inside Cerberus' Lair; if attempted, you will receive the message: You cannot place the cannon here, it would melt.

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Unique drop table
''There is a 1 in 128 chance of hitting the unique drop table. Below lists the effective drop rates of any specific item.''


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Weapons/Armour

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Runes/Ammunition

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Herbs, potions, and seeds

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Ores

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Others

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Trivia

 * In Greek and Roman mythology, Cerberus is a multi-headed hellhound with a serpent's tail, a mane of snakes, and a lion's claws, guarding the entrance of the Greek underworld to prevent the dead from escaping and the living from entering. This reflects the area around Cerberus as it guards the rivers that take souls to the Underworld and explains the very rare drop Jar of souls.
 * Cerberus stands on a trapdoor as a reference to the book/film ', also known as ' in some territories which explains the 4 stone/crystal drops.
 * At one point, if a player had killed the last Cerberus of their task but also happened to die in the room, the player would be unable to recover their items as entering the boss chamber required the player to be on a hellhounds task. This was changed so that the player can enter the chamber, but simply be unable to attack the boss.
 * Along with the said change, the summoned spirits it calls were also given weapons so that challengers could easily identify the combat style they would be using.
 * Upon release, the summoned souls would continue attacking the player even if Cerberus died. This is no longer the case with the 16 March 2017 update.
 * Cerberus is the only Slayer boss whose attacks are fully protected by protection prayers.
 * Cerberus is a female.