"With the proper temporal-axis coordinates, it should be possible." If Cortana wanted more questions to focus on, there was always the question of how this strange girl seemed familiar with a potential that outstripped what most people might consider possible outside of science fiction.

"Besides," she pointed out, "I know for certain that I didn't come here on my own. I also know it's not likely to be the Master Chief who brought me."

That left Cortana, unless someone was playing with them both. Process of simple elimination. Wait. No. This wasn't the Nexus. And the only other place she saw people who didn't belong to her world... was inside a dream.

As if that would be believed. She turned it into a joke.

"Unless someone's dreaming." The AI dreaming of being in a field and on a ship, or a SPARTAN dreaming of an AI in a field and on a ship.