Two quick comments - any calculations based on Tazendra's quick guesstimate about her ability to move Castle Black, coming just after the Orb's reappearance, are unlikely to convince me that they have much bearing on Morrolan's ability to move the castle after a few hundred years of study. And note that on pg 21 (ppb) of _Dragon_ Vlad is teleported to CB and looks down (which I have trouble believing) while recovering. The landscape he sees appears to possibly represent a rune; he speculates it might be telling the castle not to fall. I think the landscape information might be echoed elsewhere - anyway this passage seems to suggest Vlad believes the castle is sessile, as it were. In a totally unrelated note, I just saw The Battle of Algiers. I recommend it to people writing about uprisings in poor quarters.