The stone that Oliver somehow managed to get his hands on last week - it's real, but he got it from a vision of Shado, but it's the flashbacks and no one really cares so let's just go with it - comes into play this week, as Taiana tries to use it to barter her way to freedom, which goes about as well as you'd expect. Nonetheless, Baron Reiter is delighted to get his hands on it, with it serving as the missing piece of the map. That's all well and good, but, well, where's this stone from? How does it somehow fit with the map, and more to the point, what is this map really for? The flashback scenes may not be exciting, but there's surely a mystery (whether or not many are interested in it is a different matter).