Test of Sublimity

Clue

"Master! Is it true that a test space exists in Rimeria?" "Yes. It's a space left behind by the ancestors. It's where the Test of Sublimity, consisting of eight trials, takes place." "Can anyone give it a try?" "Of course. But only one has managed to pass it. I believe a record of it can be found at the Elderhouse..."

Story

(The final letter reads as follows...) Yaruz, it's me. It's been quite some time since we took on the role of elders, hasn't it? Time really flows by so quickly. I've made my decision. I'm going to pass the elder position of Rimeria... to him. I'm aware of the worries that he's too young for the elder position, but his mastery of illusions is on par with mine. What he lacks is merely experience. The weapon of sublimity, Annihilation, has deemed this young Yoz worthy. With countless opportunities and time on his side, Shandi holds great promise. I am eager to see the future of Rimeria that he will shape.