Isn't she dead..? Anda that is why E has not ver appeared again, because she is dead. She doesn't really have the motive to care about Lions Arch assassination. She is very occupied with her mommy issues. Also E does not know letter about assassination comes from Caudecus and her daughter should surely recognise fathers hand writing. You previously believed it is Lady Wi which seems much more likely to me. What made you change your mind that it is Caudecus' daughter? After i did the order of whisper story and see the mesmer abilities pf Lady Wi, i though she is E, and is the number one posibility and the one with more probablities. Also, her daugther is near Caudecus so could be the perfect spy in the white mantle. Logicaly speaking, Lady Wi should be E. But later, i though in Demmi as a character that could be much more. And how could she pay for the sins of her father already being dead? Being E this all time. She has the political conections and the order of whisper resources. But, if i would have to bet, i Will put all my money on Lady Wi. Demmi is just my Romantic way of seing the mistery.