Helena just stared at her with wide eyes. The Angelic Order was a close knit group. They called each other brothers and sisters, but they also rarely met with one another.
This was especially true for their leaders, Adam and Lilith...
The two of them were the founders of the Angelic Order. Back then they were only regular humans, but after getting free from Harold's control, Sera realized a way to use this strange religion.
One day when the church was mostly empty Sera walked in and secretly talked with Adam and Lilith.
They were married by that point, but their devotion was larger than their love. When Sera asked them to organize a large force of ascended in secret, they done so without questions asked.
She only ever talked with them on that day. Bran still had some very secretive way to contact them, but they were mostly left independent.
Even now she only knew that Lilith was in New Constantinople because of Frank.