Answer:
Hoofed frolicking.
Voiceless it cries,Voiceless it cries, Wingless flutters, Toothless bites, Mouthless mutters.
Thousands lay up gold within this house. But no man made it. Spears past counting guard this house, but no man wards it.
What is the smallest bridge in the world?
Both punishment and sweet reward, It will befall both fool and lord. It is a spiritual scoreboard, Your every deed it does record.
Dark, feathery, and popular in Baltimore and fantasy books.