SureAI

Just a few question...
I didn' t understand the utility of the Master Skull. After finishing the quest I went to the Three River Watch and waited for midnight, but nothing happened. There is no quest active and there is no reference in the journal. What should I do?

In PowderCliff, near Duneville, I found a "Canal Key", I explored the whole area, but I couldn' t find any door to be opened with the key. I' d like to know more since the area is incredible.

Thanks

1) There is a wrong text/place displayed ingame: http://en.wiki.sureai.net/Enderal:Bad_Vibrations

2) There was once a quest, deleted due to time issues (there should be some letters etc. around the powdercliff). But the key is working with the canal entrance at the beach.