After defeating Odin Prime, you may make a request of Odin. Selecting "The release of thy knight" will allow for quest progression. Afterwards, you will be given a choice of rewards.
Selecting any of the other options leads to a lengthy speech from Odin, but will not cause quest progression.
Odin's dialogue will change after each "release" request.
Only the most recent dialogue, and whichever other requests you have made, will show up at the Goblin Footprint. After full completion, only the 10th, 11th, and other requests will be available. However, the "other requests" will show a very truncated version of Odin's speech, not the full speech given when you actually do the quest.
Below 50%, Odin Prime may begin a countdown starting at 10. At 0, he will use Zantetsuken (ability), inflicting Death on all targets within a 30' radius of his current target. This can be avoided by using /heal, or by running out of range of the target.
Ghatsad aims to seal the distortion that is the Dark Rider's portal into this world. You must procure another key and return to Hazhalm to collect the data he seeks. Meanwhile, Ovjang and Mnejing would ask of you a favor of their own...
SPOILER WARNING: Click here for additional details about this story line.