Hi there, Thanks for reaching out. After getting Moment of Clarity and obtaining all remaining Osseous Fragments, you should've received a new intrinsic for Barrow-Dyad, and the Dyadic Ascension quest will indeed disappear. Once this happens, as Epsilon58 mentioned, you'll have to complete a Court of Blades run on Expert, [b]making sure to have Barrow-Dyad equipped[/b]. After doing so, you'll receive an item called the Sharp Osseous Spine for your trouble, which you can turn in at the Slab in order to start a new exotic quest called "A Needle's Path."