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 also be given a lecture on Construction, granting 1,500 Construction experience, as long as your Construction level is at least 30. 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). They can also be used on an altar in a player-owned house. If used in the Ectofuntus, you will receive the same experience as if you used big bones (60 experience).