[bug?] mysterious message

i have a problem with this quest. u get it from lonai, after crossroads mission. its the primary quest before u choose between magrid and master of whispers. here's my problem: i did the first point of the quest (started the cinematics), but i quit without finishing it. now i got the quest (completed) but i cant find anymore the adept whisper to finish it and get the quest reward, so that i can continue the storyline.