He returned to the glen in 1947 armed with his beat-up surveying kit and a near-dogmatic faith in precision. At twenty-six he married Fiona Sinclair and took over his father’s work for the laird, and began the quieter task of pinning family memory to the page: photographs dated and labelled, elders’ voices recorded on reel-to-reel tape, his own notebooks transcribed in careful India ink.

The old tales would seem a joke, he told himself. Kelpies? Methane rising from stagnant water. Glaistig? A shepherd’s wife with rheumatism and a grudge. Phantom piper, black hound, bean nighe — all psychology, projection, the mind papering over the unknown with familiar shapes. We have lorries now, electric light, penicillin, he would say, tapping his temple. No shadows when you can flip a switch.

Fiona would occasionally notice him gazing at the fire, notebook closed, and tease softly: “You’ve written Jean’s songs down to the final grace-note, but you still won’t join in the singing.”

They’re history, he would reply, flicking the cover shut. Not prophecy. Not warning.

In the early spring of 1952 his uncle Robert Drummond MacGregor — the last of the Glasgow line, childless, lungs eaten away by decades of shipyard dust — came home to the glen to die. The old schoolhouse, now a half-hearted community hall, filled for the wake. Candle flames shivered on whitewashed walls still faintly scarred by pre-war chalk. Malcolm stood by the door in his best charcoal suit, shaking hands; his father Alasdair Ewan sat in the corner gazing into the peat fire as though the flames were having a private conversation.

Talk lagged, as it always did at wakes, to the recognisable ghosts. Old Ewan Ross, almost doubly bent, whispered into his dram: “Cat-sìth circles the house of the dying. Nine times it jumps the body — foot to head and back again. Claims the soul if ye dinna stop it.” Laughter rippled, thin and brittle. Malcolm catalogued the moment with a precise part of his mind: Superstition as comfort mechanism.

Midnight entered. Voices hushed for the last prayer.

Then — a faint mrrrow skittered through the east gable. Sharp. Deliberate. Then silence so complete that the crackling of the fire sounded obscene.

Fiona looked at the shuttered window. “Stray cat, maybe? Seeking warmth.” Malcolm shrugged, though a small unbidden thought flared: No strays come this far up the glen in March. Not with snow still lying in the corries. The sound rounded: north wall, west, south — slow, padded footfalls that seemed to drag silence behind them like a cloak.

A low growl throbbed across the panes, felt more in the sternum than the ears. An elder hissed, “Cat-sìth. Draw the fire high. Distract it with flame.”

Malcolm could sense eyes turning toward him — the surveyor, the modern man, the one who measured things and got them to behave. Fine. I’ll give them science. “I’m going to take a look at the yard,” he said, smoothing his waistcoat.

Alasdair’s slender hand wrapped around his sleeve. “Leave it, lad. Some things pass if ye dinna give them notice.”

Malcolm considered: Notice is precisely what I want to give it. He took the heavy electric torch and went out.

The cold was as harsh as a slap. Stars overhead, sharp; the grass frozen in thin brittle sheets. The torch beam picked up the yard: empty barrows, stacked peat turfs, the low stone wall. No gleam of eyes. He turned clockwise, beam steady. Fresh scratches marred the stone at the east gable — four lines at once, claw-deep, too neat for any dog. No pawprints in the soft mud beside the path.

Mice in the walls, he told himself emphatically. Settling after the thaw. The reasoning seemed thinner than the frost on the grass.

A shape skipped across the beam: soft, low, black as boot-polish. The bulk of a large farm cat, yet heavier — shoulders rolling with conscious predatory purpose. At a corner it turned its head — eyes burning yellow, not with reflected torchlight but with a light from within. Two cold lamps in pitch black.

Malcolm’s pulse beat hard. Optical illusion. Reflection off wet stone. Adrenaline sharpening contrast. He held the torch steady. “Shoo. Away with you.”

It blinked slowly, once and twice, like a judge issuing sentence. Then it walked to the door and sat, yowled — a sound like silk tearing through to the marrow. Inside, chairs scraped. Malcolm lunged. The cat sprang away, supple and mute, and disappeared round the north wall. He trailed, torch swinging. Nothing. A full circle: not a trace in frost or mud.

Not possible, the thought came clear and cold. No cat covers thirty feet in seconds without violating the laws of physics I’ve mapped my whole life.

Back at the door, it sat once more — unfathomably — tail tucked over paws, eyes locked on him. Then it rose, extended languidly, spine arched, and slipped through the two inches of opening under the door — too narrow for fur and bone, but it went without a pause.

Malcolm kicked the door open and entered. The cat sat at the foot of the coffin, tail lashing slow and deliberate. It began the leaps: nine meticulous bounds — foot, chest, head, shoulder, flank — circling sunwise, pausing at each to utter a low mrrrow that swept the room like ice. Fiona crossed herself. Alasdair spoke hoarsely: “Fire. Throw peat on it — distract the beast.”

Malcolm’s heart pounded. This is coincidence. Pattern-seeking. Pareidolia. But the leaps kept coming — exact, ritualistic. He grabbed the tongs, raised a peat brick, and flung it toward the cat and coffin. Sparks shot in a brief orange flash. The creature hissed, standing back to untenable height, eyes a bright green. It lunged, walked round the room counterclockwise — growl escalating into a mournful keen that rattled the stones. At the ninth circuit it halted by the hearth, turned, met Malcolm eye to eye with those blazing lights and disappeared. No blur, no rush of air. Simply gone.

Silence as thick as peat smoke.

⁂

Dawn was grey and reluctant. Robert’s body lay undisturbed. Malcolm walked the east gable alone in pale light. The scratches were gone — as if brushed clean by frost and something older. No prints in the yard.

That night he opened the notebook, hands trembling. He wrote: Cat-sìth at Uncle Robert’s wake, March 1952. Nine leaps confirmed. Nine circuits observed. Dispersed by fire diversion. Rational explanation absent. Coincidence insufficient. Further observation required.

Fiona watched from the doorway. “Still think it’s mice?”

He closed the book slowly. No, he thought, and that admission broke through him like a door creaking open in the dark. But I will measure it anyway. Because that is what can be done; and if it can’t be measured? Then the glen has measured me, and found my lines wanting.

In the nights that followed, when the wind churned around the gable like distant pipes, he banked the fire high, peat ready, and listened — for paws that needed no doors, for eyes that burned without question, for the leisurely circling of something ancient that was waiting patiently for the man who thought he could rule the darkness with a straight edge. Scepticism bent. The glen simply waited for it to snap.