Mangled bones

Mangled bones are obtained when fighting the monsters or rummaging the barbarian skeleton found on the ground within the cavern, some will drop either chewed or mangled bones, in conjunction with any type of log, can be used on the burnt space (pyre site) to make a pyreship.

When burned in a barbarian funeral boat during the Barbarian Training will release a level 166 spirit, which after killing will leave a reward in your inventory. However, you cannot receive a Dragon full helmet, which can only be obtained from chewed bone pyreships or as a drop from Mithril Dragons.

TIP: Use the Protect from Melee prayer to render the spirit harmless.