75.0 inscription to make the pens.
I just checked on my Hughes cuz been ages since he been making em. If ya do find you do need more of those for assorted spellbook engravings lemme know I can have my Hughes make ya up some. No they do not work on runebooks hrmm. Each pen uses feathers and black pearl to make the spellbook engraving tool, with the inscription skill being at least minimum 75.0 and maybe an ML acct. I forget if it took a recipe or not been too long since my chr. been making those for folks. *usually on my vendors of his*
I am growing red leaves, and petals with Hughes since he is an alchemist so he can tend to em all, but I only had 3 seeds left of the red petals they not even matured their 8 days yet so that'd be only 24 petals when they are done growing. I do plan to grow more petals leaves and thorns.
Oh also check that guy's house too by Brit he sells plant resources south of the wheat fields there in there somewhere. He posted recently that he had opened up.