Now I find I've changed my mind and opened up the doors

[toariversodeep]

The initial check was simple-looking over the layout of the place, meeting with the Engineering heads, making sure that no sensitive equipment was somewhere it might clearly have to be moved from. A time was arranged: Allen and Billy would clear everyone else from the lab, if only for a little while, so the search could be made in relative peace. Roxie wasted no time in laying out her orienting equipment, to try and find some trace of direction for what she was looking for: delicate chains laid out in odd patterns on the floor, things suspiciously like dowsing rods in weird freestanding harnesses, shiny rocks and pebbles...

Reversible, certainly, but it all takes a rather lot of floorspace.