Answer:
They are the group who manages the winged engines of war.
What eight letter word has "kst" in middle, in the beginning and at the end?
The negative hero in each story
What can't you see, hear or feel, until it’s too late. What shadows love, and shopkeepers hate?
What smells the most in the kitchen?
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.