I need to get off the path. The trouble is, there’s nowhere to go-

Hang on, I think. Am I seeing true?

There is this about the interstitial paths: it takes a fair bit of power to open a gate, and I didn’t notice any pentacles and altars draped in eviscerated goats during my walk through the decaying shopping center. On the other hand, it takes relatively little power to fake up a glamour to provide the illusion of a dark path. Wheezing, I reach for my phone, thumb it on, and slow my stride just enough that I can see the display. Bloody Runes, ward detector, turn the camera on the footpath-

A silver thread, disappearing around the bend ahead of me. I pan sideways, and the camera blurs then clears, showing me ordinary English nettles and a thinly spaced row of trees pruned well back from the path. It’s bright, too, the ground dappled with summer daylight filtered through the branches overhead. Gotcha. I jink sideways, towards the menacing hedgerow on my right, slowing, eyes focused on the face of my phone as the shadows of the thorny wall loom over me-

And I crash through a stand of waist-high nettles and narrowly miss a young beech tree as the hedge and the thunderstorm sky vanish like the illusion they are.

“Ow!” I swear under my breath, the hot-bright pinprick sting of nettles rising on the back of my phone hand. I examine the side of the cutting the path runs through. Yes, it’s familiar. I’ve been here before, or somewhere very like it. Except for the lack of pedestrians walking the dog, or cyclists en route from one side of town to the other, it could be a normal bike track. But this one’s been warded off; anyone starting down it who isn’t wanted is going to feel a mild sense of dread, rising after a while to an urgent conviction that they need to be anywhere else.

I thumb my phone back to the start screen, and look for a signal. There’s nothing showing. That shouldn’t be possible, not on a major network in the middle of a city, but there are zero bars. Do the bad guys have a jammer? It wouldn’t be unheard of. And they knew enough to lay a snare right outside the New Annexe, one tailored for me… that is not good news. I sit down behind a tree, careful to check that I’m concealed from the path by that stand of stinging nettles, and then I do something that’s overdue: I compose an email to the two people I know I can trust-Angleton and Mo. The JesusPhone is smart enough to keep looking for a connection, and to send the mail as soon as it snags a signal. Then I compose a slightly different email to a whole bunch of people I don’t entirely trust, remembering to include Angleton and Mo on the recipient list, and send it. Now that should set the cat among the pigeons. My heartbeat is just about back to normal by the time I finish, and my lungs aren’t burning anymore, so I slide my phone into an inside jacket pocket and stand up.

Click-clack. “Don’t move.”

MEANWHILE, OVER ON THE OTHER SIDE OF THE LOOKING GLASS:

“Listen, let me give you an update. I’ve been suspended on pay. I need you to pick up a ward for me, as soon as you can. I’m heading home now, but I’m inaudible and they inaudible can you find him and tell him inaudible-”

Mo sighs, exasperated, as her phone beeps three times and hangs up on Bob. She waits five seconds, then hits redial. It connects immediately.

“Hello, you have reached the voice mail of-”

She puts her phone away, leaving it for later. Bob’s obviously in a poor reception zone, but if he’s heading home they can compare notes in a couple of hours. Being suspended is bad news for Bob, but she’s been half-expecting it. They’ve both been under too much pressure lately: the business with the cultists, the suspected leak, all the other minutiae of being part of the operational front end of an organization under increasing strain. Everyone is under strain these days; even the people who aren’t cleared to know about Dr. Mike’s bombshell.

Mo heads towards an anonymous industrial estate in the suburbs out near Croydon, where some of the more technical departments have relocated while Service House is being rebuilt. She travels by tube and then commuter train, and finally by bus, keeping one hand on her violin case at all times. It takes her an hour and a half to make the journey: strap-hanging in grim silence, alone with her worries about the evidence she removed from Mr. Dower’s workshop. She travels under the gaze of cameras; cameras on the tube platforms, cameras in the railway station concourses, cameras on the buses. Many of them are linked to the SCORPION STARE network, part of the huge surveillance web the government is spinning to keep the nation safe in the final days. But the final days may be about to arrive with a bang, two or three years earlier than anticipated…

She walks the hundred meters to the car park entrance, then enters an anonymous-looking office reception area in an otherwise windowless building. A plain signboard on the high razor-wire-topped fence outside proclaims it the property of Invicta Security Ltd., and the portrait of a slavering German shepherd beneath the sign promises a warm welcome to would-be burglars. Both signs are, of course, lying: the building currently houses most of the Occult Forensics Department, and there’s no easy way to visually depict the protean, gelatinous horrors that ooze around the premises by night.

“Hello, Invicta-” The blue-suiter behind the counter pauses. “Dr. O’Brien. Can I see your pass, please?”

Mo presents her warrant card. “Hi, Dave. Is Dr. Williams in?”

“I think so.” Dave pokes at his computer terminal. “Yes, he’s booked in. Do you need to see him?”

“I’ve got a job on. Can you page him?”

“I’ll do that.” Dave points a webcam on a stalk at her, then prints off a temporary badge. “Here, wear this. It’s valid for zones one and two, you know the drill.”

“Yes.” Mo doesn’t smile. Whereas the New Annexe mostly deals with paper (apart from the armory), the OFD handles physically-and in some cases spiritually-hazardous materials. Access to the inner zones is restricted for good reason.

While Dave pages Dr. Williams, Mo plants herself on one of the powder-blue waiting area seat-things, and idly pages through some of the magazines on the occasional table: Forensic Sciences Digest, Gunshot Wounds Monthly, Which? PCR. Her attention is a million kilometers away from the articles, but they serve as a distraction for her eyes. She has one of the magazines open at a color spread of spent bullets retrieved from victims of crime when a shadow falls across her. “Mo! What brings you out here?”

She looks up, forcing a smile. “Nick? Are you busy? Can we discuss this in your office?”

Five minutes later, another windowless office with overflowing bookshelves and too many filing cabinets. “What have you got for me?” he asks. Balding, in his late forties, Nick is the research lead in this particular lab.

“A special job.” Mo pauses. “Sub rosa.”

“Sub-Oh shit. Tell me it isn’t so.”

She shakes her head. “I think it’s probably a leak rather than an inside job, but even so, this is for you, not the office junior. Eyes only.” She pulls out the tub of paper clips from Mr. Dower’s workroom, and the small stapler from beside his cash register, and places them on the worktable opposite Dr. Williams’s desk. “The owner of these items was murdered about forty-eight hours ago. He’d just prepared a special report for me. I’m pretty certain the killer took the report, and knowing George-the victim-he would have paper-clipped or stapled it. So I want a full read on the top copy-and a locator.”

Dr. Williams whistles between his front teeth. “You don’t want much, do you?” He pauses. “When do you need it by?”