Originally Posted by RAINMAKER
That's what she did. But it's frustrating because of the plot hole in BB. Why wasn't there a mention of her in TDKR as a BB flashback? It probably was because it would then be too obvious that Talia would be the surprise villan.
Sure it would have been cool.
As an explanation, maybe Ra's in BB didn't want to bring up the daughter who hates him and left the league because Ra's excommunicated her protector and friend.