Question about dragon age origins... xbox 360?

im on a quest called the art of red cliff, anyways... i talked to teagan by the mill, when some random guy/girl whos name was something like iso-etc?? teagan gave me a key to a secret passage inside the the windmill lol and now it says to infilntrate the castle. ive gone thrrough every door i can find, and killed everything. i finally found girl in this place, who is supposedbly somebodys daughter that i had talked to in the game. she said she could get out on her own. and that leaves me where i am at now(stuck). i cant figure out what it wants me to do... please email me at blaze_it@live.com and explain to me how to do this. please do not explain on here, because i may have more questions.. best answer will be chosenQuestion about dragon age origins... xbox 360?
That girl is the daughter of the smith down in the town below. As for continuing on, from where you found her go back into the hall and find the one door along the left side (looking back towards where you came from).

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