A Ghost from the Past

A Ghost from the Past is a quest available in .
==Background==
"Green-Venom-Tongue learned a few things from the Black Dragon's journal that seem to point to his former Sanctuary. He wants to go back there and try to confirm the Black Dragon's claims."''
==Objectives==
#Talk to Green-Venom-Tongue
#Meet Green-Venom-Tongue Near Anvil
#Travel to the Purified Sanctuary
#Enter the Purified Sanctuary
#Talk to Green-Venom-Tongue
#Search the Sanctuary
#Talk to Green-Venom-Tongue
#Approach the Shrine of Sithis
#Talk to Green-Venom-Tongue
#Meet Green-Venom-Tongue in Kvatch
#Learn Lyra's Fate
#Talk to Green-Venom-Tongue
#Talk to Astara
==Walkthrough==
After completing "Dark Revelations," talk to Green-Venom-Tongue. He has learned from Lyra Viria's journal that either The Black Dragon destroyed his old sanctuary and took the name of Lyra who died in that event, or Lyra herself destroyed the sanctuary and became the Black Dragon. He will ask you to head there with him to help him investigate. 
Green-Venom-Tongue has arranged for transport, and will ask you to meet him outside of Anvil. There, you will find the cart that will bring you to Black Marsh. Once there, proceed ahead and follow Green-Venom-Tongue to the purified sanctuary in the Ruins of Xith-Izkul. Green-Venom-Tongue will know the password and allow you to head in; speak with him once inside. He will tell you that he has brought a special resin that when burned, reveals hidden secrets. He will also tell you that there may be undead or ghosts roaming these halls, even if the living have abandoned this place. 
There are four spots within the sanctuary you need to examine; you can do these in any order. In the library in the north of the sanctuary, you will find the remains of one of the assassins; using the resin will show you a vision of Lyra killing her fellow assassin. From here, proceed east to the room with the cages hanging from the ceiling; you can get here by jumping off the bridge or by taking the long way around. The vision here will reveal that Lyra was sanctioned by the Black Hand to perform the purification here. 
Head south from here. The room with the shrine to Sithis houses nothing of note for now, but the room south of that with the hanging skeletons will reveal to you that Lyra really did not want to do this to her comrades. Finally, continue south along the hallway, then turn east and north to the final room. You can either parkour over some rubble or you can choose the long way around. In this final room, you will see Lyra kill an assassin she knew would never betray the Brotherhood. 
After seeing all the visions, speak with Green-Venom-Tongue. He will empathize with how hard it must have been for Lyra to purge this sanctuary, but he still has trouble believing she is the Black Dragon. He will implore you to head to the Shrine to Sithis here in the sanctuary; it is where Lyra would often go and pray after a successful mission. There, you will see a vision of Lyra praying to Sithis, after which Speaker Arawen approaches her and gives her her next mission, to kill the primate of Akatosh in Kvatch. 
Talk to Green-Venom-Tongue about this and he will tell you that Primate Jonas, Primate Artorius's predecessor, did indeed die shortly after these events. He still does not understand what could push Lyra to betray the brotherhood though. Because of this, he will ask you to come to Kvatch with him to use the last of his resin to figure out what happened. 
Head out of the sanctuary and back to Shazara-Ta and her boat. She will bring you back to Anvil; from there, head to Kvatch. Green-Venom-Tongue will be in front of the cathedral. Speak with him and he will use the last bit of his resin to show one final vision of the past. In this vision, you will learn that it was Primate Artorius who performed the black sacrament to have Primate Jonas killed, and that he then promised Lyra redemption should she turn her back on the brotherhood and serve him as his Black Dragon. 
Talk to Green-Venom-Tongue about this and he will tell you to head back to the sanctuary and talk to Astara. Do this to finish the quest.
==Rewards==
*1 skill point
*Unidentified Sithis' Touch Waist Armor box
*10 Dark Brotherhood reputation
*73–302 
==Journal==
==Appearances==
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ru:Призрак из прошлого