The first encounter with Estar

In both the original, long-form version of Rome's Revolution and the modern version, Rei passes Estar in the hallway and notices she has funny eyes. Also, in both cases, Rei encounters Estar in the hallway, right after Rome is Cesdiud. In the original scene, Estar did not have mismatched eyes, though:

     “Halli le,” someone said to Rei.
     He turned and saw a woman coming toward him. Like all the Vuduri, she was short. She had blonde hair, but it was cut so severely, it was almost a buzz cut. Rei recognized her as one of the ones from the Great Room and the exercise room, but he did not know her name.
     “Yes?” he said and walked back toward her.
     “I need to ask you some questions,” she said in English.
     “How do you speak English?” Rei asked.
     “From Rome. The Overmind,” she said, tapping her temple.
     Rei wrinkled his forehead trying to understand how one person learning English could result in another mastering it. This Overmind must accumulate information in a way he couldn’t comprehend. He decided not to try. And still, there was something else about the woman. He couldn’t quite put his finger on it.
     “What’s your name?” Rei asked.
     “Estar,” she replied.
     “Oh yes, Rome mentioned you,” Rei said. “You’re the other data archivist, right?”
     “Yes,” she said. “It is imperative that I speak to you. I require that you remain still for a few moments.”
     “Sure,” Rei said. “What do you need?”
     “I need to clarify your intent,” she said.
     “My intent about what?” Rei asked, looking her right in the eye. Then it came to him. Her eyes were not like Rome’s or the other Vuduri for that matter. Her irises were luminous silver. They were so bright, they seemed actually reflective. She had the same glow emitting from her pupils as did Rome. The net effect made it seem as if she had no pupils at all which Rei found slightly unnerving. To Rei, it almost looked like she might be blind, yet clearly she was not.
     Estar interrupted Rei’s reverie. She said, “Your goal is to continue your journey. Perhaps to find a way back to Deucado and also find a way to tow your Ark with the Essessoni aboard, correct?”
     “You already know that,” Rei said. “Aren’t you part of the Overmind?”
     “Yes, of course,” she said. “But I need to know your intentions. You are going to thaw out your people when you get wherever you are going, correct?”
     “Well, sure,” Rei said, puzzled. “That’s the whole point of our mission in the first place.”
     “Is it your intent to unload the Erklirte weapons as well?” the woman asked.
     “Weapons?” Rei replied, confused. “What kind of weapons? We’re not carrying any weapons.”
     “Let me rephrase then,” Estar said. “When you arrive at your new home world, you intend to land the cargo portion of your craft and unpack its contents, correct?”
     “Of course,” Rei said. “We’ll need that stuff to get organized, to start our lives there.”
     “Very well,” she said. “That is all I needed to know.” Without another word, she spun in place and started walking back toward the gym.
     “Wait!” Rei shouted after her. “Why are you asking me this? Who are you, anyway?”

Well, now we know who she was. She was an agent for MASAL, spying on the Vuduri mission to Tabit. Why MASAL sent her was never clear to me but I suppose he had an inkling, as did OMCOM, that stars disappearing is not a good thing and he wanted to be prepared just in case he needed to exploit what they found. It turned out to be quite fortuitous because otherwise, he would never have known a whole Ark-load of Essessoni were on their way to Deucado to foil his plans for genocide. Unfortunately for him, he never quite got the chance to pull it off, though, being vaporized and all.