NOW THAT I KNEW where we were going, it was a lot easier to get there. We went to the next lift junction, and I spent a careful minute cutting my code-protected lift out of the system and making its actions invisible to the rest of the lifts. (That sounds like an obvious thing to do, but the problem is, if the other lifts can’t see your lift, they can attempt to occupy the space your lift is already in. This is just as catastrophic for the occupants as it sounds.)