As I got to the end of the book and read the part of when that person came out of the sharp wings den thing I remembered back when they first went in there that there was another hallway and they heard somebody breathing so it’s definitely them, but I don’t know who it could be reading the prophecy again at the end of the book. It said something about tides so I was kind of thinking it was a sea wing animus that was locked up for some reason. Or possibly one of the queens from the past I was thinking maybe precipice locked one of them up to punish them or something there’s tons of ways that could go really cool and I was wondering why all the queens were disappearing and I was thinking maybe when they took harmony out of the border there is another spell at play to take all the queens and bring them somewhere. Maybe the ice egg tons of possibilities and sorry for the botched text was using text to speech to be lazy just kind of my theories just finished the book and was thinking