A very short dwarf with a thick unkempt dark beard, his eyes mismatched one brown, one green.

Of the Folk of Drúin of the Blacklocks.

Secret: An exile from the lands to the south, Óli follows Dwain as his best chance to visit the halls of Khazad-dum.  For he knows that his destiny awaits him in those haunted halls:  he will become the greatest rune-caster his people have ever known...or he will perish there!

Find the ancient ruined mansion, Durin's haunted halls,
There to win the deepest secret, or unto darkness fall.
By cunning riddle tested, by fatal sorrow won,
To claim thy birthright or to perish ere the set of sun.

This prophecy was given him by Rali son of Nali, whom the old rune-caster fears almost as much as his own destiny.