I have been unable to find the name of the last ship that was the point of contention before AR was bombed but it began with an H and so the gears of my mind began to wonder what the heck this Dawn Star is.
This seems to be another clue hidden in plain sight and, while it could relate to the room under the temple, I am more inclined to think that is the orbital platform.
I did have a weird thought about what might happen if the "archangels" were in cryo-sleep under the temple and wake up, discover the key is missing so they go up stairs looking for someone who has it...
This would bring them face to face with the Grand Inquisitor who would no doubt have them arrested and put to the Question because obviously they are heretic blasphemers ... hmmmm

