I wanted to use nodes and ley lines in the setting, and am at the map drawing stage. Problem is, I can't remember what book I read about the mechanic for nodes and ley lines in. I remembered FR having node magic, but that's that Underdark earth node type stuff, with nothing on ley lines. I have a LOT of books, and am going to begin the index spelunking tonight, but I thought I'd ask if anyone remembers where this mechanic might be.
From what I remember, it's something like:
*There are major and minor nodes, and being around them grants certain magical effects to those who know how to use the energy.
*All major nodes connect to one another, over any distance, but minor nodes only connect to majors and one another within something like 100 miles of each other.
*The connections are ley lines. Spellcasters can feel them with either a spellcraft check or an ability check (I think), and with certain feats can use the lines to travel, relay information, &c., without expending spells.
I know, it's a tiny little mechanic, but I figured one of you might have seen it. Anyone know it?