When we started running this we had good luck in finding the elusive "Lady In Black." Now? A solid streak of bad luck.
Our current (un)working theory is that she spawns only after a certain number of thugs are killed. Maybe only after you clear the alley with the collectibles?
Is it just time?
Maybe the text could be updated to say, "Now is the time to clear the neighborhoods and flush out the mysterious Lady in Black." Or, "Bide your time until the elusive Lady in Black shows her face." Or, some sort of hint as to what is going on?