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.