Answer:
What points the way without a hand. It floats on water but exists on land?
A home of wood in a wooded place, but built not by hand. High above the earthen ground, it holds its pale blue gems. What is it?
My first is high, My second damp, My whole a tie, A writer's cramp
A precious stone, as clear as diamond. Seek it out while the sun's near the horizon. Though you can walk on water with its power, try to keep it, and it'll vanish in an hour.
Of these things - I have two. One for me - and one for you. And when you ask about the price, I simply smile and nod twice.
What language does a billboard speak?