Answer:
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.
I'm not really more than holes tied to more holes. I'm strong as good steel, though not as stiff as a pole.
What tree that definitely grows does not have a shadow and does not grow fruit?
I have it, I donβt share it. If I share it, I donβt have it. What is it?
Voiceless it cries, wingless flutters, toothless bites, mouthless mutters.
Dark, feathery, and popular in Baltimore and fantasy books.