By the way he talked about him,he never "met" Zeref while knowing his identity. Only when he was killed did he realize who he was.
Precht lived a hundred years,maybe a little less. For most of his life,he followed Mavis's will. However,I imagine that Mavis's fate ended up influencing him into researching magic and it's...darker applications...and then he strayed.
The bigger the light,the bigger the shadow it casts.
Valentine,you must learn to keep your shit together,and your expectations in check. The reveal of the four gods was exactly I was expecting,except for Serena''s treason. After all,the council is allied with fairy tail,so a meeting like this one here would work nicely. No need to waste time and pages with this.
Since he was the strongest ,I was savvy enough to expect him to be an enemy in the future. I was even expecting a fight against all the four gods. Didn't think it would happen like this. However,his resemblance to Yuriy is most fascinating.