The Stanley Parable Adventure Line™ is an entity in The Stanley Parable that guides Stanley throughout the office in the Confusion Ending. The Narrator employs its usage in order to "find the story", but the Line™ leads Stanley and the Narrator back to the Monitor Room, as they had in previous restarts of this ending. This greatly annoys the Narrator, who later confesses he wants to "veto" the Line™ from having any role in their journey.
The Line™ is characterized by a solid yellow Line™. As the Line™ progresses, It™ starts to zig-zag throughout the office and cause havoc, knocking over chairs, desks and boxes. The Line™ makes a reappearance on the last restart, when It™ comes crashing through the ceiling, zig-zags around for a bit, then leaves again. When you follow It™, you are accompanied by the song Following Stanley. It™ is always addressed with a trademark symbol.
The Line™ can be found in the Confusion Ending. For some time after the Confusion Ending, peeking in a window in the office will reveal the Line™ on the ground.
The Line™ was encountered twice during the gameplay, although the Confusion Ending Schedule stated that the Line™ will make its third appearance should the Narrator go on with the schedule.
The Line™ also appears in the Stanley Parable Demonstration. In the "Final Decision" room, the Line™ can be found on the wall, low near the darkness. It is easy to miss.