Is there anything aside from what's been said so far that she might know about the Deepsinger/Deepsong/Empress/situation in general? And is her ability to shift totems something the Empress did to her?

Also, how does the Empress infect mers with the Stricken virus? Does she use Deepsong on a smaller scale, or is there another process she uses instead? I'm blanking on whether or not this came up in the first Jaunt.