At the beginning of the quest for the Necromancer 7th Rank Skullcap Harbinger Gosk gives Unfinished Sceptre. http://lucy.allakhazam.com/item.html?id=12873
It is not clear here, but reports from one or more players seem to state that it is necessary to put this Unfinished Sceptre in the forge with
Eye of RokGus
Gem of Yet to Come
Jewel of Ganak
Shiny Emerald
Forge Hammer of Dalnir