That’s what I remembered about flying unicorns that could teleport themselves from one place to another, I read that in a book. Only the book was about dragons, not unicorns. There was some sort of fungus-like thread stuff in the air, and the dragons used their fire to burn up the threads before they could reach the ground. Or something like that, I read that book a long time ago, like I was young enough to have to look up the meaning of words while I was reading. Teleporting dragons.