Answer:
Half-way up the hill, I see you at last, lying beneath me with your sounds and sights. A city in the twilight, dim and vast, with smoking roofs, soft bells, and gleaming lights.
It can pierce the best armor and make swords crumble with a rub, yet for all its power It can't harm a wooden club.
My first is in fish but no in snail. My second is in rabbit but no in tail. My third is in up but not in down. My fourth is in tiara but not in crown. My fifth is in tree you plainly see. My whole a food for you and me.
What can you fold but not crease?
You saw me where I never was and where I could not be. And yet within that very place, my face you often see.
If it’s information you seek, come and see me. If it’s pairs of letters you need, I have consecutively three. What am I?