By your hand, a terrible Nameless entity has been released. By your hand, he must fall.
'${PLAYER}, I charge you with defeating that... fiend! The Shadowed King must not be allowed to live! Since it was by your hand he was released, it is only fitting that it be by your hand that he fall!
'Return to Moria at once, find Frethi, and track down the Shadowed King. We cannot allow him to release Throkhâr his master!'
The Shadowed King must be found and defeated, but first, you must find Frethi.
You should return to the Crown Chamber in the Foundations of Stone.
Frethi has left you a note in the Crown Chamber.
You should read the note.
Frethi left you a note saying he had gone to investigate the Shadowed Cave.
You should find the Shadowed Cave in the Foundations of Stone.
The Shadowed King awaits within the Shadowed Cave.
You should complete Askâd-mazal, the Chamber of Shadows, on any difficulty.
The Shadowed King has been vanquished!
You should return to King Thorin and inform him of your victory.