Ok, so in Quest part 1 he grabs the stone, he can't get it...ok. In the AOL special we see a tiny bit of part two. They are in another room, probably after "controlling" the dragon (I think it is a robot or ship of sorts) it took them there. Sam says she found what Morgan was really protecting, and we see DJ ancientizing himself. I believe the libray of knowledge he uses isn't a real one. It was one made by Merlin that only has the knowledge of Merlin's weapon, and how to use it. The sangraal itself is only like a remote activator.