is breathing more heavily than he likes to admit. “Come on in,” she says, and turns the handle. “You haven’t been up here recently, have you? I’ve made some changes.”
The space on the top floor is open plan, and huge. It appears that the attic spaces of the entire row of town houses have been combined into one enormous room, rafters boarded over with a sprung floor, roof beams replaced in situ with steel girders to provide an unobstructed space fifty meters long and ten meters deep. There’s a clear space at one end big enough for a dance floor or a dojo; the rest is broken up by movable partitions. “Welcome to my workshop. It’s why I finished buying up the entire row of houses—just so I could build this,” Persephone explains, a note of quiet pride in her voice. “I rent out the other units, so I can vet my neighbors for security.”
Lockhart swallows. “Very impressive,” he says. Previously he’s only seen the interior of the town house she lives in. She doesn’t invite social callers up here, as a rule, and he can see why.
There is a metal ring in the middle of the eight meter by eight meter square of open flooring at the far end of the room. Cables connect it to a pair of nineteen-inch racks that would not be out of place in a server room. Tool cabinets and other equipment, including a pair of backup generators, are positioned around it.
She walks towards him until they are standing nose to nose. “So, Gerry. What really brought you here today?”
“I like to get out of the office from time to time.” He nods at the huge summoning grid at the far side of the room. “Is that in proper working order? The new job really does require containment rather than just a sweep for bugs.”
Persephone stares at him for a moment, then turns and walks towards the grid. Lockhart hurries to catch up with her—she’s a tall woman, and she moves fast. “This is a class six grid,” she explains over her shoulder. “Kimpel-Ziff deflectors and four different safety interlocks. The control module”—she points at the first equipment rack, which is full of shiny server blades—“is three-way redundant and has two separate power supplies, two UPSs, and two different generators. Just in case. It also has a secondary containment grid around the outside, just in case . Which is to say that it is as secure as anything your organization could provide. So the answer to your question is yes, it’s in proper working order.” She stares at Lockhart, nostrils flaring. “Will that do?”
“Yes.” He nods. “If you don’t mind firing it up? This briefing will take some time.”
SUMMONING GRIDS—PENTACLES WITH ATTITUDE—HAVE A number of uses. Unsurprisingly, summoning spirits from the vasty deeps of Hilbert space is one of them. They can also be used, by the foolhardy or terminally reckless, to open gateways to other spaces (most of which are utterly inhospitable to humanlike life). Finally, they can be used to create a firewall, like a science fictional force-field only buggier and prone to hacking attacks by extra-dimensional script kiddies with pseudopods. Which is why nobody with any sense uses them casually.
The ward that Persephone programs into the management console of her grid isn’t aimed at summoning squamous horrors or opening a doorway to hell: it’s just there to provide thirty minutes of uninterrupted high-quality privacy, protected utterly from bugs, listeners, and remote viewing exploits. It takes her a minute to set the script up and hit return on the keyboard; then she steps into the middle of the grid and beckons Lockhart forward.
They stand in silence at the center of the silver schematic diagram, ignoring each other, watching opposite ends of the room. Then, suddenly, the room isn’t there anymore. Neither is the ceiling. The only light is the LED lantern that Persephone places carefully on the floor at the center of the disk they are standing on, an eight-meter circle of