: It's from the Marathon 2 end screen: While Tau Ceti was being nuked down to
: bedrock in 2794,
: Pfhor scientists disassembled and removed the AI Leela from the
: Marathon, loading her aboard a vessel bound for the Pfhor homeworld.
: But the ship fell into the hands of a Nar privateer between jumps
: at Beta Naxos, and was never seen by the Pfhor again.
I guess it has been a long time. Though I have to point out that, since "Tau Ceti" clearly doesn't mean the star, it could just as easily mean the colony as the planet, and the former would make more sense. Plus it wouldn't be the first Marathon game to totally ignore the M2 end screen.