"Ha?" Lin Yun suddenly froze. It was a truly neglected magic book. Almost no mages would be able to encounter an Elemental Spirit during their lifetimes. Unless they truly had the need for it, most mages wouldn't bother even skimming through that knowledge.
Based on this, Lin Yun was almost certain that Rudolph had already discovered an Elemental Spirit, and it was most likely in this Demiplane...
Lin Yun thought about it and took – Key Points for Elemental Spirit Capture – from the bookshelf before casually flipping through a few pages. Sure enough, the several pages explaining how to capture Elemental Spirits had been frequently searched through before. There were clear signs of wear and some finger traces could be seen among some lines.
Seeing this, Lin Yun knew that he didn't have to keep looking any farther.
