Following your adventure into the Astral Prism, you eventually return without killing the Dream Visitor as they have proven that they are on your side.
Whether you have dealt with the Githyanki named W’wargaz and the group that has been instructed to kill you and your party, escaping the Githyanki Creche remains.
This can be done in different ways but depending on what you choose, you can either gain a lot of experience and loot or simply ditch the creche as soon as you can.
How To Escape The Githyanki Creche?
After you have returned from within the Astral Prism, you will have to deal with W’wargaz and the group that is waiting to kill your party. (This is regardless of if you attacked the Dream Visitor)
Once you have dealt with the group, you will not be able to fast travel to other waypoints until you escape the area. (Your minimap will be glowing red and waypoints are disabled)
There are ways for you to escape the creche which will either include a fight or you finding the path to the Secret Chamber.
Fight Your Way To Captain’s Quarters
Escaping the Githyanki Creche does not necessarily mean that you will have to fight every Githyanki that is stationed there, but you do have to face a tough group.
All you need to do is defeat Kith’rak Therezzyn who is accompanied by her wolves and other Githyanki troops.
Once you have dealt with Kith’rak Therezzyn’s group, all you need to do is make it past the Captain’s Quarters and it will be safe for you to fast travel again.
Find The Secret Chamber
If you are on track to finding The Blood of Lathander, you will probably be on your way to the Secret Chamber, which will be near the Inquisitor’s Chamber. (Where you return from the Astral Prism)
Heading east of the Inquisitor’s Chamber will bring you to a room with loot in it and there will be two statues that you may rotate to reveal the path to the Secret Chamber.
Going through the revealed passage will allow you to fast travel once more since the area is not considered a danger zone or alert area.
Verdict
Fighting your way back to the Captain’s Quarters will allow you to get experience and loot, which includes the Soulbreaker Greatsword.
If you decide to fast travel out of the Githyanki Creche, you may still come back later to obtain some of the loot that you might have left behind.
If you reach the Captain’s Quarters and decide to continue exploring, the rest of the Githyanki that you encounter in the creche will be hostile towards you.