User blog comment:Omega natsu2/Chapter 375: The Supernatural, Predictions./@comment-83.255.207.11-20140313153509/@comment-24066070-20140313162549

If Mirajane and Jellal can find it (not sure how serious you are about these), then Precht can certainly find it. Out of all the chars in the series he is the most mixed between good and evil, since he trained Makarov's generation and taught them "harmony" as he was Mavis' successor, but then he fell into darkness. The only char who might have the same experiences with both light and darkness is perhaps Zeref, but I'd say no char has researched/experienced both light and darkness to the same extend as Precht.