A temple about an hour east of Waylain.
Inside one can learn of the history of Mystra and how she came to be.
In a secret room hidden beneath a chest the party heard Mystryl’s voice it says:
” Chosen, or more likely.. Worthy. If you have found yourself here it is because you dared to hold the power of the Silver Flame, the power to restore the weave, against the Goddess herself. Whether you understood the gravity of your act or find yourself here by sheer coincidence, you have brought the light of truth forward, so head my words.
I am Mystryl, the true Goddess of The Weaveand Karsus can not truly slay me. I know not when one will hear my message or the exact scenario that will play out when Karsus decides to Act. But I do know that my Divine Spark will be split, and the weakness of my successor will be necessary to bring balance to the weave. The chaos of her tending shall draw many powers into my domain, They will all be necessary. The Netherese, Phaerimm, Elves, Undead, and even one of my Chosen Gather them and bring them to where my largest spark, Mystra, will be under attack. ”