Obvious spoiler warning is obvious
Made of dark steel by those of an age gone by, this is the last of the giant war golems. Taller than elder dragon is long, this clanking behemoth plods across the land, obliveous to all works of men, elves, or dwarves.
Temple of some malign being invites you warmly and offers help (curing,needed spell etc) for some minor sacrifice . Sacrifices must be everytime bigger to work - up to living inteligent creatures. Maybe you pay some other price,too...