Learning Andecite Cornerstone

Talk to Barlow if you want to learn how to make castles.

Barlow points up to the top of the castle and says, "What do they think they're doing? If I wasn't afraid of heights, I'd go up there and bust some heads. They think I can't see them from down here. When I get a hold of that foreman, he's going to be sorry." "What I need is a worthy apprentice who wants to learn how to make castles. I guess you're as good as anyone." "You already know how to make cornerstones so there isn't any need to test your skills. If you want to learn more let me know."