Burnt bones

Burnt bones are bones that can only be found in the Demonic Ruins and Red Dragon Isle in the Wilderness. It is not possible to obtain these as a drop or by using them on any source of heat such as a fire. When buried, they give 4.5 Prayer experience, and as a result they are no different to regular bones, except that they have a darkened appearance and that they weigh slightly less. It is not recommended to train prayer with burnt bones, since they are only obtainable in the wilderness, and regular bones give the same amount of experience and are much easier to get.