Guild Wars 2 – Deeply Tangled Roots

Head over to Sandycove Beach Waypoint. From there just head a bit North to reach the starting point for the next instance.

Once inside the instance head over to the West and meet your cohort. It is time to head into the Nightmare Court's camp and get the information you are after: the location of Ysveita. Keep going West and toward the marker. You will find Renvari at the entrance of the camp to welcome you inside it.

After introductions head to the Southwest and make for the upwards slope. You have no concerns about getting attacked right now. At the top you will find Ysvelta, but she is not caged to held in any fashion … that cannot be good time for a little conversation:
Tiachren: “My beloved Ysvelta! Thank the Pale Tree, you're all right. Quickly, come with me. Have to get out here.”
Ysvelta: “No, Tiachren. I cannot go with you.”
Tiachren: “But, Ysvelta … I don't understand. Don't you love me?”
Ysvelta: “With all my heart, dear knight! Come, take my hand, and we will both stay. We will thrive in the garden of Nightmare.”
Tiachren: “These people are evil. You aren't one of them. Return to the Grove with me, and put all this behind you.”
Ysvelta: “I cannot, love. The Nightmare Court has shown me the truth. Ventari's Tablet is false; the pale Tree is lying to us. Don't you understand? It is marvelous! I have been chosen to lead the next attack on the village of Astorea. The court will free them  - and I will free you.”
Hero: “So, it's true. Once you join the Nightmare Court, you change. Ysevelta can't return to the Dream.”
Tiachren: “No. I can't accept that. I won't! Where are you going? Come back!”
Ysvelta: “If you love me, Tiachren, then meet me where our hearts begin! You remember the place ...”

Caithe appears and kills one of the guards in the area. Time to be off. Head over to the West and then follow the path that leads to the North. You will find yourself back at the entry point of the camp. It is time to fight all those courtiers. They are mostly lvl 8. Just be wary of Renvari. There are about 8 opponents for you tackle here. This includes Renvari. He loves to attack with his blades and flames. It is an interesting completing.

After the fight there is another talk:
Tiachren: “They forced her to say those things. Ysvelta isn't evil. She'd never fall to Nightmare. If I could get her away from those courtiers, I know I could bring her back to the Dream.”
Caithe: “I warned you that we might be too late, Tiachren. Nightmare never relinwuishes those it has entralled. You must let her go. If you chase Ysvelta, you will fall into Nightmare as well. We must grieve her loss – and move on.”
Hero: “Why are you so sure of that? Have you seen this before?”
Caithe; “Yes, I've seen … I am certain. You must believe me. Ysvelta said the Nightmare Court is going to attack Astorea village. Are going to risk innocent lives to chase Tiachren's false hopes?”
Tiachren: “You must do as you think best, Firstborn. As for me, I will not abandon Ysvelta.”
Caithe: “Then the Valiant must choose. Do you wish to make another attempt to save Ysvelta, or will you protect the villagers?”

It is time to make the choice for this story line: Do you chase after Ysvelta (The Heart of Nightmare) or do you defend Astorea Village (Beneath a Cold Moon). The choice is yours. When you have chosen, talk with Caithe. Make the choice talking with her to move the story forward.