crow - gift of stone?

[jkkwan324]

I'm not sure how learning wandering scrolls work. So I think the crow starts off with gift of stone, when you ask him to write it, he said it will take sometime. I notice some crystals were taken, but no spell. Does this mean i have to wait a few battles before my character learns the spell? Also what does gift of stone spell do? I tried searching for this information but could not find anything. Thanks for the help guys.