theseriousone23":x8myyvso said:Check the wiki for the full walk through for this quest: http://www.exiledkingdoms.com/wiki/inde ... f_Lothasan
The important bit: "you will have to choose: to send her back home, run away together, or have her join you" You need to find the secret door, that will have the switch to free her in order choose any of these options.
If you're talking about fighting the Horror and Amarisa keeps dying, either keep trying or choose to send her home.