- **Actions:** press E for something instant; hold E for a job of any number of steps, each with its seconds; a step can be loud. A job can need: an item in the pack, power from a control board, another job done first, free pack squares. A job can: lock an opening for ever, give or take an item, put a photograph in the journal, pass or leave an oxygen tank for a survivor, make a trigger harmless.

- **South side:** no wall. A force field instead: **one unbroken sheet** of faint blue light from end to end, as tall as a wall, between a glowing rail at the floor and a thin one overhead, with a post at each end. The light is brightest at the rails and a faint grain drifts up it, so it reads as energy and not as glass. It is solid: nobody walks through it. Beyond it there is nothing but stars. It is never lowered for the camera, because it is see-through. *(Owner, same day, on the first version, which had upright lines every three metres: "the force field should not be separated to panels. it should be one long force field.")*

- **Neon sign:** on the north wall, to the right of the doorway as seen from inside the room, in the middle of that stretch of wall. It is made the way neon signs are made: every letter is red glass tube bent to shape, held a hand's width off a dark board on short posts. The words are set one to a line, **EMERGENCY** over **LOCKDOWN**, in capitals about 0.9 metres high, on a board about 6.5 by 3 metres that hangs with its foot against the wall and its head leaning out on two brackets, so it faces a viewer who looks down at it. The tubes glow, their light washes over the board behind them and falls red on the floor in front. It blinks like a struck tube: a stutter, a second of steady light, half a second dark. It cannot be locked on or used. It hangs on the wall, so it drops out of sight with that wall when the view is turned to look from the north. *(Owner, same day, on the first version, flat lettering in a plain frame: "I am sure you can make the neon sign look better. Give it a proper font, place it better on the wall, that kind of thing. right now it looks almost like a 16 bit game." The capitals and the two lines are the implementer's choices.)*

**New building blocks this card added:** a side of a room can be a force field instead of a wall (a side like that has no door); a wall can carry a neon sign of any words in capitals, that is only there to be seen; a large thing can be locked on from anywhere around its body, not only near its middle. **For the whole game:** light that is brighter than white now glows (neon tube, force field rails, lamps, stars) while ordinary lit surfaces stay as calm as they were, and edges are smoothed.