Hasta is asking that anyone willing to help him should gather the various ingredients necessary to draw forth the menace from beneath the Water-works.
'I am very glad to have your assistance in this matter, ${PLAYER}.
'Part of our bait will require a strong metal that can be fashioned into hooks and cable. Bring me ten Khazâd-steel ingots, and I'll add them to our collection.'
Khazâd-steel ingots can be crafted by Prospectors throughout Middle-earth.
Hasta would like you to bring him five Khazâd-steel ingots.