Her mother, Azian Vance, who is of Asian descent, can be seen in a family photograph appearing in the games, but is not part of the story. Alyx is the daughter of Dr. At the beginning of Episode One , she gains a small scar above her right eyebrow, presumably inflicted at the end of Half-Life 2 and having been dug "out of the rubble. Although Alyx was a child at the time of the Black Mesa Incident at which point Gordon was 27 years old  , Gordon's almost twenty years long stasis after Half-Life has more or less erased any age gap between the two. His first appearance is in Half-Life. Freeman's letter of acceptance to Black Mesa, written May 5, , as it appears in the instruction manual of the PlayStation 2 version of Half-Life.