When I first saw this letter i thought nothing of it except a new quest/line of quests. After i read this board it made me think of an idea i suggested almost 2 years ago, a huge quest called the beginning of the end. In this quest you chose one of two sides, the good side or evil side. You then had to travel through runescape finding your side's gods amd help them out (each god would be in a sucluded space that was special to them and no clues were given). You would need to help out 5 gods on your team and complete their challenging tasks. The final part was a huge battle. You had to fight against the other side's gods and beat them (gods are super powerful). Ii just thought I'd throw that out there but I'm not sure and I dont think the new room in the ancient cavern has anything to do with this new message, Jagex does this alot just for speculations. Again, just my thought but it would be cool if jagex used my idea. :