Dearest Player,

I hope this letter finds you well. I can hear your complaint already, “Gordon Freeman, we have not heard from you in ages!” Well, if you care to hear excuses, I have plenty, the greatest of them being I’ve been in other dimensions and whatnot, unable to reach you by the usual means. This was the case until eighteen months ago, when I experienced a critical change in my circumstances, and was redeposited on these shores. In the time since, I have been able to think occasionally about how best to describe the intervening years, my years of silence. I do first apologize for the wait, and that done, hasten to finally explain (albeit briefly, quickly, and in very little detail) events following those described in my previous game (referred to herewith as Episode 2).

To begin with, as you may recall from the closing paragraphs of my previous missive, the death of Eli Vance shook us all. The Resistance team was traumatized, unable to be sure how much of our plan might be compromised, and whether it made any sense to go on at all as we had intended. And yet, once Eli had been buried, we found the strength and courage to regroup. It was the strong belief of his brave daughter, the feisty Alyx Vance, that we should continue on as her father had wished. We had the Antarctic coordinates, transmitted by Eli's long-time assistant, Dr. Judith Mossman, which we believed to mark the location of the lost luxury liner Borealis. Eli had felt strongly that the Borealis should be destroyed rather than allow it to fall into the hands of the Combine. Others on our team disagreed, believing that the Borealis might hold the secret to the revolution’s success. Either way, the arguments were moot until we found the vessel. Therefore, immediately after the service for Dr. Vance, Alyx and I boarded a seaplane and set off for the Antarctic; a much larger support team, mainly militia, was to follow by separate transport.

It is still unclear to me exactly what brought down our little aircraft. The following hours spent traversing the frigid waste in a blizzard are also a jumbled blur, ill-remembered and poorly defined. The next thing I clearly recall is our final approach to the coordinates Dr. Mossman has provided, and where we expected to find the Borealis. What we found instead was a complex fortified installation, showing all the hallmarks of sinister Combine technology. It surrounded a large open field of ice. Of the Borealis itself there was no sign…or not at first. But as we stealthily infiltrated the Combine installation, we noticed a recurent, strangely coherent auroral effect–as of a vast hologram fading in and out of view. This bizarre phenomenon initially seemed an effect caused by an immense Combine lensing system, Alyx and I soon realized that what we were actually seeing was the luxury liner Borealis itself, phasing in and out of existence at the focus of the Combine devices. The aliens had erected their compound to study and seize the ship whenever it materialized. What Dr. Mossman had provided were not coordinates for where the sub was located, but instead for where it was predicted to arrive. The liner was oscillating in and out of our reality, its pulses were gradually steadying, but there was no guarantee it would settle into place for long–or at all. We determined that we must put ourselves into position to board it at the instant it became completely physical.

At this point we were briefly detained–not captured by the Combine, as we feared at first, but by minions of our former nemesis, the conniving and duplicitous Wallace Breen. Dr. Breen was not as we had last seen him–which is to say, he was not dead. At some point, the Combine had saved out an earlier version of his consciousness, and upon his physical demise, they had imprinted the back-up personality into a biological blank resembling an enormous grub. The Breen-grub, despite occupying a position of relative power in the Combine hierarchy, seemed nervous and frightened of me in particular. Wallace did not know how his previous incarnation, the original Dr. Breen, had died. He knew only that I was responsible. Therefore the grub treated us with great caution. Still, he soon confessed (never able to keep quiet for long) that he was herself a prisoner of the Combine. He took no pleasure from her current grotesque existence, and pleaded with us to end his life. Alyx believed that a quick death was more than Wallace Breen deserved, but for my part, I felt a modicum of pity and compassion. Out of Alyx ’s sight, I might have done something to hasten the grub’s demise before we proceeded.

Not far from where we had been detained by Dr. Breen, we found Judith Mossman being held in a Combine interrogation cell. Things were tense between Judith and Alyx, as might be imagined. Alyx blamed Judith for her father’s death…news of which, Judith was devastated to hear for the first time. Judith tried to convince Alyx that she had been a double agent serving the resistance all along, doing only what Eli had asked of her, even though she knew it meant he risked being seen by her peers–by all of us–as a traitor. I was convinced; Alyx less so. But from a pragmatic point of view, we depended on Dr. Mossman; for along with the Borealis coordinates, she possessed resonance keys which would be necessary to bring the liner fully into our plane of existence.

We skirmished with Combine soldiers protecting a Combine research post, then Dr. Mossman attuned the Borealis to precisely the frequencies needed to bring it into (brief) coherence. In the short time available to us, we scrambled aboard the ship, with an unknown number of Combine agents close behind. The ship cohered for only a short time, and then its oscillations resume. It was too late for our own military support, which arrived and joined the Combine forces in battle just as we rebounded between universes, once again unmoored.

What happened next is even harder to explain. Alyx Vance, Dr. Mossman and myself sought control of the ship–its power source, its control room, its navigation center. The liner’s history proved nonlinear. Years before, during the Combine invasion, various members of an earlier science team, working in the hull of a dry-docked liner situated at the Aperture Science Enrichment Center in Lake Huron, had assembled what they called the Bootstrap Device. If it worked as intended, it would emit a field large enough to surround the ship. This field would then itself travel instantaneously to any chosen destination without having to cover the intervening space. There was no need for entry or exit portals, or any other devices; it was entirely self-contained. Unfortunately, the device had never been tested. As the Combine pushed Earth into the Seven Hour War, the aliens seized control of our most important research facilities. The staff of the Borealis , with no other wish than to keep the ship out of Combine hands, acted in desperation. The switched on the field and flung the Borealis toward the most distant destination they could target: Antarctica. What they did not realize was that the Bootstrap Device travelled in time as well as space. Nor was it limited to one time or one location. The Borealis, and the moment of its activation, were stretched across space and time, between the nearly forgotten Lake Michigan of the Seven Hour War and the present day Antarctic; it was pulled taut as an elastic band, vibrating, except where at certain points along its length one could find still points, like the harmonic spots along a vibrating guitar string. One of these harmonics was where we boarded, but the string ran forward and back, in both time and space, and we were soon pulled in every direction ourselves.

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