From what I recall of that timeframe and the chronology, Moiraine went back to visit Adeleas and Vandene to research the Forsaken and esoteric lore. Eventually, share pieced together a method for creating balefire from this research.
"Those who think they have no time for bodily exercise will sooner or later have to find time for illness."
Moiraine *spoilers*
- 04/03/2010 01:47:52 PM
1229 Views
The best alternative being that neither Moiraine or Lan are Darkfriends or double agents 
*NM*
- 04/03/2010 02:48:41 PM
250 Views
*NM*
- 04/03/2010 02:48:41 PM
250 Views
Re: Moiraine *spoilers*
- 04/03/2010 03:15:42 PM
794 Views
Hm, I don't think she got balefire from A&V, did she?
- 04/03/2010 06:00:13 PM
700 Views
She did research and apparently pieced it together, like Verin did with Compulsion.
- 04/03/2010 06:19:45 PM
652 Views
she learned it later
- 04/03/2010 09:33:57 PM
611 Views
Which, as I said, means that she learned it during "The Great Hunt".
- 04/03/2010 09:50:01 PM
593 Views