A well discussed, but never seen, organization of women whose goal is to protect the Unitatem and uphold the Pacta Sunt Servanda.
Our party members were introduced to the Astral Sisters after their Divine Premonition (detailed here) and their meeting with the Astra Matrum, or the keeper of the stars. There they learned that the Astral Sisters are followers of the Astra Matrum and act as her hands in the world of Solaris since she is bound to the Island of Pax.
Currently our party members only know of two members, the Astra Mother, Sadora, the high elf assassin that guided them to their meeting with the Astra Matrum, and Guinevere, the orc barbarian that escorted fifth party member Talaedra to the Desert Elf Kingdom and aided in battle against the stone gollum.
Keepers of the Divine Blood: A Journey 