Strongbones's bone is received by killing Strongbones without any weapons or armour during the Hopespear's Willminiquest. Once players receive them, they have to bury them anywhere in Yu'biusk. This grants the player 3750 Prayerexperience. If players try to bury it anywhere except for Yu'biusk, they will get the message "You should go to Yu'biusk before you bury this bone."