The Outrun. Amy Liptrot

dropped on the way to the circle four thousand years ago. I remember the colony of Arctic terns that nested here, dive-bombing our heads during the breeding season, swooping close enough for us to feel their wings. The endangered great yellow bumblebee is found here in the summer, pollinating the red clover; magic mushrooms grow in the autumn; and a rare type of seaweed, Fucus distichus, unique to wave-battered rocky northern shores, grows on the rocks all year round.

      At the top of the Outrun there is a sea stack known as ‘the Spord’ or ‘the Stack o’ Roo’, a tower-block-sized rock that was once part of the cliff but now stands alone. In the summer, puffins nest on the stack, along with fulmars, shags, black-backed gulls and ravens. Carefully avoiding rabbit holes, I used to clamber down a grass slope to a ledge, the best place to tuck myself in, look across to the stack and watch the bustling seabird society – fulmars noisily defending their nests and puffins returning from far out at sea.

      There are no fences on the Outrun to keep the sheep off the rocks and cliffs. In the early years of the farm, Dad climbed down and rescued ewes that got stuck on ledges, but as the flock matured, geographical knowledge and foot-sureness was bred into the bloodline.

      After recent rain, the burn that runs down to the sea is flowing, where my brother Tom and I played, pushing ourselves and the dogs under a small stone bridge. Oystercatchers and curlews made nests in the tracks left by the tractor and we’d chase and catch the chicks, feeling their soft, hotly beating bodies in our hands before letting them go.

      I stop at the place where, when I was a kid, a neighbour left his new tractor running while he jumped out to open a gate and neglected to pull on the handbrake. He was turned the other way as the tractor began to roll, driverless, down the sloping field. He could not run fast enough to catch it as it accelerated and, with unstoppable force, the expensive machine plunged over the edge of the cliff and smashed into the Atlantic.

      Later in the afternoon, I come back up to the Outrun to feed the Highland cattle, squeezing in next to Dad in the cab of his tractor, the way I used to when I was small. I still know where the bumps and dips in the land are so I can hold on tightly when necessary. Dad lowers the loader holding the silage bale into the ring-feeder and the kye gather around. It’s already dark and I stay in the cab and watch him, lit by the tractor headlights, cutting the thin black plastic off the bale and pulling it away so they can eat. His hair is mainly white now, and although he wears a padded boiler suit almost year round, he no longer needs gloves.

      The Outrun is tucked away behind a low hill and beside the coast, and in the right spot you can’t see any houses or be seen from the road. Dad told me that when he was high, in a manic phase, he had slept out here. At the end of the day, crouched away from the wind beside the freezer again, rolling a cigarette and eyeing the livestock, I have become my father.

      2

      TREMORS

      WHEN I GET BACK FROM my walk on the Outrun, instead of entering the farmhouse I go to the machinery paddock and open the door to the caravan where Dad now lives. The sheepdog waits outside for him and the horses have their heads over the gate, looking for hay. The old caravan is weighted down with concrete blocks against the wind. One of the windows was blown out in a gale last winter and has been patched up with a wooden sheet.

      Inside, Dad is wearing his outdoor boiler suit, with baler twine and a penknife always in the pockets, over a jumper that Mum knitted, which he still wears, now patched at the elbows. He’s sitting in the upholstered corner seat with the best view out through the large Perspex window, across the farmyard and fields, over the bay to a headland. The colours of the sky and the light on the sea change all day as rapid Atlantic weather systems pass over. When the clouds break, sunlight dazzles on the water. An outcrop of rock is exposed at low tides. Sometimes the light picks out in fine detail the hills of Hoy, another island to the south beyond the headland, and on other days they disappear completely in the haar.

      In a shaft of winter sun, the air is dusty with muck from outside and smoke from the roll-ups Dad smokes. There are outdoor clothes and wellies by the door, farm paperwork spread over the low table, and the glow of a gas fire. At the other end of the caravan is a bedroom and the dog sleeps directly below Dad, under the caravan, like a wolf in its cave.

      ‘Did you feel anything up there?’ Dad asks, before beginning to tell me, although I’ve heard it before, about the tremors. This stretch of cliffs and beaches, where the mythical Mester Muckle Stoorworm is first said to have made himself known, where the people of Skara Brae eked out their lives and where HMS Hampshire was sunk, has mysteries.

      Some people on the west coast of Orkney, including Dad, say they experience tremors or booms sometimes, low echoes that seem strong enough to vibrate the whole island while at the same time being quiet enough to make them wonder if they imagined it. ‘You hardly hear it, but feel it more,’ says Dad. ‘It’s a low-grade boom, like thunder at a distance. There are vibrations of the ground enough to shake windows and shelves. It lasts for one pulse and is often repeated a few times in a couple of hours.’ Locals say they have felt the booms over many years but are unable to identify a pattern to their occurrence. They wonder if it is geographical, man-made, even supernatural – or if it happens at all.

      To understand the tremors I have to look deep within Orkney’s topography. The geology of the West Mainland coast, with high cliffs at Marwick, Yesnaby and Hoy, strewn with the sea stacks, sloping rocks and treacherous currents responsible for many shipwrecks, is the first place to look. It is possible that the booms and tremors are caused by wave action within caves deep below the fields. As a large wave travels into a dead-end cave, it traps and compresses air at high pressure. When the wave retreats, the air bubble explodes, causing a boom.

      Others blame the tremors on the military, and sonic booms produced by jet aircraft. Around sixty miles from Orkney, on mainland Scotland, the Cape Wrath Ministry of Defence range is where the military train on and offshore. This sparsely populated area is one of the few places in the UK where the ‘big stuff’ can be detonated. Heavy air weapons would be the only thing that could send a sonic wave as far as Orkney but wind conditions would have to be perfect. High-speed aircraft can also cause sonic booms as, on dive-bombing runs, they descend into denser air, but although Dad sometimes sees and hears the planes, he says the tremors do not come at the same time. I wonder if other, harder to grasp, even ghostly, island forces could be at play. The legend of Assipattle and the Mester Muckle Stoorworm tells of a huge sea monster, so large it could wrap its body around the world and destroy cities with a flick of its tongue. A layabout called Assipattle dreamed of saving the world and got his chance when he killed the Stoorworm by stuffing a burning peat into its liver, cooking it slowly from the inside. Writhing in agony, the Stoorworm thrashed its head, knocking out hundreds of its teeth, which formed the islands of Orkney, Shetland and the Faroes. Dragging itself to the edge of the earth, it curled up and died, its smouldering body becoming Iceland – a country full of hot springs, geysers and volcanoes. That liver is still burning so maybe the Stoorworm isn’t dead at all. A tentacle may still be twitching around these shores and the tremors may be the aftershocks of the monster’s death-throes.

      Talking to Dad about the tremors, I feel slightly nervous. Our conversations are normally limited to the farm – what jobs need to be done or the condition of the sheep and the land – so hearing him speak about uncanny sensations and strange geology makes me concerned that he might be getting high. Mum taught me to look for the signs. At first it could be exciting, with Dad talking a lot, full of optimism and energy, but this would bubble over into his making impulsive purchases, such as expensive rams or farm equipment, staying up all night and moving animals at four in the morning, then grandiose thoughts, with him feeling he could change time and control the weather.

      On the floor of the caravan there’s a stool I remember from the farmhouse that Dad made in the hospital when he was a teenager. He was fifteen when he was first diagnosed with manic depression, now known as bipolar disorder, and schizophrenic tendencies. Since then, periodically, he has ups and downs of varying amplitude. Our family life was rocked by the waves of life at its extremes, by the cycles of manic depression. As well as the incidents with sectioning and straitjackets, followed by time away in a psychiatric hospital, there were