There are Unicorns, in the books plus a Dragon "horn" that one dude gets ahold of to try and steal her dragon's but it goes on to say that who ever blows that dragon horn dies from blowing it.
PS. GRRM did go on to say to watch out for click bait, What I read yesterday wasn't from his site. So take that Mother of Dragons being alive with a grain of salt.
But what I just posted up is from he site and from his "Not A Blog" website. He Isolated himself to a Remote area with one of his Staff. Goes on to say he is working on Finishing up the book Winds of Winter. I think that this will be a very popular book that will change the perception of modern literature. Yesterday I wrote my essay about the devastating effects of Hurricane Katrina https://papersowl.com/examples/hurricane-katrina/
I think that the Winds of Winter will be comparable in power to a hurricane. All book conferences are required to submit reviews of the work, and all literary critics are already anticipating the release of the book as well.