About 20 level Alchemist Class Quest

[Zaiaku]

This is probably too late to be helpful, but I was stuck on this too.

Then I realized that the quest requires an Engraved Hard Leather Grimoire, not just a plain Hard Leather Grimoire, to be melded with any type of materia.

I didn't realize they are 2 different items. ^^;

This isn't too late at all for people stuck with the same issue! I had indeed made this mistake and only realized because of your post.