The Dwarf
Another one of the little people, the dwarfs were diggers who dug for precious things for a living. They were usually as decent as the elf that helped Graham, if a little grumpy, but the poorer dwarfs employed themselves as thieves and bandits, and had an ugly temper.
Graham almost collided with one of these thieves, but was invisible at the time, and fortunate, too, for he carried treasure with him, and if the dwarf had gotten it, he would never have gotten it back.
And if the dwarf had stolen the Chest of Gold, all would have been lost!