"Ain Is In Danger!"
Those black horses were indeed, not your average horse. With a dragon horn on their head...they carried a dragon bloodline!
A draconic horse was their species name.
It was one of the fastest and strongest beasts suitable to pull a magic carriage. But with its scarce number, only a monster like the Walter Family and those from the 7 great mafia families could afford it.
Once the two horses heard the whistle command, they let out a fire breath before their silver scales glinted. The scales quickly grew in numbers, covering the horses from head to toes.
In just a few seconds, the black horses became silver horses with dragon scales.
But the most astonishing was that the horses suddenly looked transparent under the silver scales until one couldn't see them anymore.
Even the reins used to connect them with the carriage also vanished.