Laia hears that Lady Eriape is in the antimagic cell in the palace dungeons when the party who accosted her brag about it in the convention hall the next day. She sends Eloi out to get confirmation of that and see if Lady Eriape is allowed visitors for spiritual counseling. By the end of the convention she has an appointment.
In she goes. "Lady Eriape, thank you so much for agreeing to see me, I'm Songbird Laia Solandra."