First find the key to the mansion in one of the cities.
either in Frostfang Sea ( -347, 175, -145 ) Copy/waypoint -347, 175, -145
or in Qeynos Capitol District ( 442, -20, -276 ) Copy/waypoint 442, -20, -276
...
Next talk to the a forlorn apparation again (located directly next to the key)
She asks you to take her steed to get to the mansion. Click on the steed that appears and you get teleported to the instance An Abandoned Mansion
Find the following:
a memory of agony - a book in the upstairs room on the right( -22, 11, -31 ) Copy/waypoint -22.36, 10.50, -30.69
a memory of deceit - a dagger on the table right next to the entrance ( -7, -0, -2 ) Copy/waypoint -7.33, -0.05, -2.01
a memory of honor - a scroll at a cupboard upstairs ( -11, 11, 15 ) Copy/waypoint -11.18, 10.50, 14.57
a memory of betrayal - rose on the bed in the upper room on the left ( 39, 11, -16 ) Copy/waypoint 38.84, 10.50, -15.98
a memory of rivalvry - letter on the table left next to the door of the room on the right from the entrance ( -25, 1, -15 ) Copy/waypoint -25.29, 0.81, -15.08
Deafeat the furious spirit in the riom downstairs left side from the entrance
You need to listen to her sentences and run to the coresponding memory item and click it. Then you can damage her by your attacks. If you choose the wrong item you get severe damage (up to 50% Heatlth) and may die choosing wrong the second time. Check the chat for the following message "You elicit the correct memory!"
Letter: How could I not have seen what he was doing? Was I so blind that I allowed him to tear us apart?
Scroll: I stood against our enemies dutifully, and this is my fate? How could he condemn me to this?
Book: He was my heart – why would he do this to me?
Rose: How could he give her his favor? Were the gifts he granted me naught but false?
Dagger: Are you here to stab me from the shadows as they did? Then come, and meet their same fate.
After chosen each of the memory you find her again in the downstairs room, where she was at the beginning. You need to destroy all the bottels in the room.