---
Raven slept for a very long time.
Thankfully time here is frozen or else he will discover that he had been sleeping for at least a year and a half by now.
For some reason, he completely underestimates just how much he 2nd trial drained him. Well, he did spent 2,000 years in there under constant alertness. He did get some rest from time to time but even as he rested, he's still looking after the star.
Now that he returned where it's safe, he dropped his guard and immediately exhaustion took him.
That being said, this long slumber or hibernation isn't all that bad. It will replenish his energy and allow him to return to his usual self after its duration.
It's just that he was into much of a deep sleep that he actually is wrapped inside a cocoon.
As for how this happened, well it's because of the Brush of Wisdom. It was the one who caused this.