Long bone

A long bone is a non-tradeable bone dropped by monsters that drop big bones, such as giants and ogres. It is also possible to obtain a Long bone by killing mutated jadinko guards and males, despite the fact that they don't drop big bones at all.

Long bones may be sold to Barlak, a Dorgesh-Kaan cave goblin, for 1,000 coins each. Dorgesh-Kaan can be accessed after the quest Death to the Dorgeshuun. You will be given a lecture on Construction, granting 1,500 experience, as long as your Construction level is 30 or more.

Long bones can be buried, but this is not recommended as they only give 15 experience for each bone buried (the same as big bones). There is a message warning you if you try to bury it. (The warning tells the player that "someone might buy it off them".)

They may still be used on an altar in a player-owned house, or used in the normal way at the Ectonfuntus. No unusual experience bonuses apply at either location; both instances will grant the player the same amount of experience as if they had used big bones.

If you have reached a certain point in the Chosen Commander quest, Barlak will be too startled to talk about the bones.

Obtaining long bones
Although there are many monsters that drop this, it is fairly rare.

A good place to collect them is the Enchanted Valley. This requires the quest Fairy Tale II - Cure a Queen to be started. Monsters such as river trolls and Rock Golems that have very low combat levels make collecting them quicker.

Hill giants and moss giants are the most commonly killed monsters in trying to obtain long bones, as they have a low combat level and provide a decent profit on the side. Combating Desert Lizards with a stab weapon is another efficient way to obtain a Long Bone - their low combat and life points assist in quicker kills and therefore more drops.

After the update of the Impetuous Impulses activity on 22 February 2010, it is also possible to obtain long bones when looting zombie impling jars.

List of monsters
Below is a list of monsters which drop long bones:
 * Aquanites
 * Cave horrors
 * Crocodiles
 * Cyclopes
 * Dagannoth guardians
 * Dark beasts
 * Desert Lizards
 * Fire giants
 * Ganodermic beasts
 * General Graardor
 * Giant Moles
 * Giant frogs
 * Giant Rocs
 * Giant skeletons
 * Goraks
 * Grotworms
 * Hill giants
 * Ice giants
 * Icelords
 * Kree'arra
 * Mature grotworms
 * Mogres
 * Moss giants
 * Mountain trolls
 * Mutated jadinko guards
 * Mutated jadinko males
 * Nail beasts
 * Ogres
 * Pit ogre (only during Love Story)
 * River trolls
 * Rock Golems
 * Sea Snake Young
 * Sea trolls (from Swan Song)
 * Suqahs
 * Terror dogs
 * TokTz-Ket-Dill
 * Tortoises
 * Tree spirit
 * Various members of the troll race
 * Warped tortoises
 * Yeti (including Nial Swiftfling in his Yeti form)