"Just before the virus was released, I sent a message out to someone I could trust. I can only assume my son, Philip, has received the note, and done what I asked. No matter what happens down here, at least I can rest easy knowing that no trace remains of this place, that those secrets remain buried here. I learned that over the years, never put too much weight on any one discovery, but the information I hold is vital not just to our survival, but the future of our species."