Haven't seen any discussion on it yet, and only just discovered the transcripts myself last night. Since they're locked behind high level slayer, here you guys go, incase you haven't read it yet:
http://runescape.wikia.com/wiki/Transcript:Sunken_Pyramid
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It appears the magic of the Order is unravelling in reverse; let us hope I can tell this story so it makes sense to you. This mural tells of the final plan we made her at the Order before we went our separate ways. It was our plan to pass our knowledge down the generations. Each of us planned to leave the Kharidian region to take on a student of our own and train them to become a Slayer Master. They in turn would take on their own students in time so that our knowledge and our beliefs would be preserved throughout the ages. The fact that you stand before me today is proof that our plan succeeded.
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With the last mural, I epxlained that our plan to pass down our knowledge through the ages was our final action here at the Order. However, I did not explain why it came to be our final action. We receieved word from my husband, another of the Slayer Masters, that Amascut was heading our way and the Order was in danger. Each of us were powerful but the Devourer's strength surpassed us all. As I mentioned, we made our plans to leave the Kharidian region to preserve our way and be out of her grasp. I meant to leave too, I swear I meant to leave. I waited here, and sure enough, she arrived. Gloating horribly, she explained how she had killed my husband, talking in detail of what she had done to him. The fury I felt in that moment! I'd like to say I put up a good fight, but in the centuries since then I have never forgotten how comprehensively she defeated me. Her final act was just as cruel - she bound my spirit to this point, just as she had done with my husband's, so that we would never be able to move on to the afterlife. So we would never be together again.
11-Sep-2017 21:19:29