A prequel to Portal featuring Cave Johnson, Caroline, and their daughter
Chell. The focus would be on Cave Johnson's slow descent into insanity and eventually his death
, and the climax would be Caroline's unwilling transformation into GLaDOS
. Perhaps, to include more plot and less Adaptation Expansion
, this could merely be the beginning of a longer story involving the attempts to restrain GLaDOS, her gassing of the facility on Take Your Daughter To Work Day
, and perhaps even the events of the first Portal game (or both).
At first I didn't realize I needed all this stuff...