The Ghost Rider #6

Ghost Rider is given the sacred spirit stone (which gives the wearer tremendous strength) by Flaming Star. On his way home Ghost Rider is shot by Towering Oak (the son of Flaming Star), who steals the stone. Towering Oak tries to take over his tribe, but is forced to fight the Ghost Rider in a trial by combat. Ghost Rider wins when Towering Oak's heart gives out from the strain of the stone. Flaming Star decides to bury the stone rather than give it back to Ghost Rider.