Chapter One

The causeway had outlived Nora's father by six years and his apology by thirty-nine.

She stood where he had once brought her with a thermos of hot chocolate, on the concrete shoulder above the tide gates, and fitted the brass jaws of his caliper around a hairline crack. The tool had no business on a modern inspection. A laser gauge hung at her hip, logging movement to a hundredth of a millimetre, but the caliper made her look at the concrete instead of the number.

One point four.

She opened the jaws, wiped salt from them with her thumb, and measured again.

One point six.

Below, an excavator lowered its bucket into the temporary cut. The machine seemed too yellow for the morning, an illustration pasted over the iron water and dun mud of Muir Basin. Along the top of the causeway, workers in orange survival suits waited beside pumps and bundled hose. Beyond them, the island road ran between two guardrails toward Gannet's clustered roofs. At this hour the windows held no light. The island appeared to be keeping its eyes closed.

“Tell me you're not taking a structural reading with that thing.”

Lena Brophy had come up behind her without the scrape of boots Nora expected on aggregate. She wore her white hard hat low and had tucked her grey braid through the adjustment strap. On anyone else the posture might have looked informal. Lena made it look like a fastening method.

Nora closed the caliper. “I'm taking a second opinion.”

“From a dead man.”

The words were neither gentle nor cruel. That was one of Lena's abilities: she could set a fact between them and leave Nora to supply the injury.

Nora clipped the caliper inside her vest. “The sensor says one point five.”

“Then your father loses by a tenth.”

On the work deck, a rigger lifted one gloved hand. The pumps had reached drawdown. They were ready to bite through the last plug of fill separating the Atlantic tide from the headpond that the causeway had made sixty years earlier.

Nora checked the time. 06:42. High water had turned at the outer gauge fourteen minutes ago. The approved method allowed a twenty-two-minute window to expose the clay core, place the stone sill, and withdraw the excavator before the reverse current accelerated. Her model gave them eleven minutes of slack. She distrusted slack. It was where people stored the decisions they had not admitted making.

Lena held out the permit board. “You sign, they cut.”

The paper was already marked by everyone else: environmental monitor, dive lead, equipment operator, first aid, traffic control. Nora's name waited at the bottom beneath the words DESIGN AUTHORITY.

She looked toward the island landing. A squat work ferry had cleared the slip and was coming toward them with its running lights still visible in the grey. Eli would be at the wheel. She could tell from the line it held. Other pilots corrected early and often against the cross-current. Her brother let the water spend itself first.

“We wait for the ferry to pass,” Nora said.

“That isn't in the method.”

“It's in mine.”

Lena's eyes dropped to the unsigned line. Nine years ago, on another wet morning and another temporary route, Nora had signed before a storm because the evacuation plan said delay carried its own risk. A junior engineer had circled a drainage calculation and written CHECK INLET BLOCKAGE in the margin. Nora had checked the calculation. She had not checked the inlet.

No one on this crew needed the story. People who had never met Callum Brophy knew how old he had been.

The ferry sounded one short blast. Nora did not turn toward the wheelhouse. If Eli wanted to acknowledge her, he could use her name.

The vessel passed the outer buoys. Its wake reached the cofferdam as a low fold and made the hanging hoses tap the wall. Nora watched the laser gauge. One point five. One point five. One point six.

Then a sound came through the causeway under her boots—not a crack, not metal, but a sustained high note like the rim of a wet glass.

Lena was already lifting her radio. “Hold all plant.”

The excavator froze with its bucket raised.

Nora crouched and pressed her palm to the concrete. The vibration was fine enough to feel inside her wrist. She pictured the temporary works beneath them: sheet piles driven into glacial clay, welded walers, crushed stone at the toe. The instruments showed no lateral movement. Pump pressure was steady. Yet water had found a narrow path. She could hear velocity in the pitch.

“Seepage at the east seam,” Lena told the crew. “Nobody moves until we see it.”

They descended the steel stairs. In the cofferdam, the air smelled of diesel, wet clay, and the mineral cold of a cellar opened after years. A silver thread ran down the east sheet pile and vanished into the sump. Not enough to wet a boot. Enough to change the plan.

Nora knelt beside it. The water tasted of salt when she touched her finger to her tongue.

“Outer head,” she said.

“I know where the ocean is,” Lena said.

The rigger looked away. Nora stood.

At the design briefing in Fredericton, she had described first exchange as a controlled pulse: six thousand cubic metres on the initial tide, then progressively more as they widened the pilot channel. A line on a chart had changed from blue to green. Nobody in the room had heard a road sing.

Lena pointed up. “We stand down, drive another pair, lose this window.”

Lose the window meant twenty-five hours until the next usable low water. It also meant the excavator stayed below the traffic deck through the afternoon tide, exposed to a higher differential head. Removing it now required swinging the bucket across the temporary utility trestle. Every alternative moved risk; none erased it.

Nora opened the live model on her tablet. The outer gauge had fallen seven centimetres faster than forecast. Wind had pushed water out of the bay overnight, steepening the first ebb. She entered the observed level, the seep location, the pump rate. A red exclusion band widened across the screen.

The revised safe-work line clipped the excavator's left track.

“Back it twenty centimetres,” Nora said.

Lena did not answer.

“The seam isn't propagating. We reduce the first bite by half, place the sill from the west, and exit on the original route. Eight minutes.”

“Or we stop.”

Nora looked at the water. The line had thickened no further. Above them, tires crossed the causeway in slow pairs, the island beginning its workday. A fish truck going mainland. A nurse's hatchback returning to the clinic. A school bus carrying no children yet, only its driver.

“You asked for my call,” she said.

“I'm asking if you can live with it.”

It was not a safety question. Lena should not have asked it in front of the crew, and Nora should not have answered it.

“Yes.”

She revised the limit on the permit, initialled it, and signed.

The bucket entered the clay at 06:58.

At first nothing changed. The excavator curled up a load dark as chocolate and set it behind the west wall. Another bite exposed cobble and the squared end of an old timber. The rigger sprayed orange paint where the sill stone would begin. Pumps snarled in the sump.

The third bite opened a hole no wider than Nora's arm.

Water struck through it horizontally. The jet hit the opposite sheet pile and burst white. Everyone stepped back at once—not panic, training—and the operator raised the bucket. For three seconds the hole held its shape. Then clay peeled from its edges and the Atlantic entered Muir Basin.

Nora had expected noise. What came was pressure made visible: black water shouldering through brown, rolling stones that had not moved since the causeway was built. The high note underfoot dropped an octave and ceased. On the tablet, the differential head fell faster than the model's lowest line.

“Too much scour,” she said.

Lena heard her. “Pull him out?”

The excavator was still in the safe zone. Pulling it now would leave an unarmoured throat that the next tide could widen anywhere. Nora calculated the time to place one bucket of sill stone, then a second. Four minutes if the operator did not have to reposition.

“One load,” she said. “West toe. Then out.”

The stone went in. Half of it vanished. The rest shook into a rough crescent. The operator reversed up the ramp as the water gnawed at the place his track had been.

At 07:04, Lena called all personnel clear.

Nora climbed to the road deck last. Her gloves were filmed with clay. The causeway had stopped singing, but she could feel another motion now, not in the concrete: the broad headpond taking its first salt breath.

The crew gathered beside the job box for the initial debrief. Lena read names from the roster and waited for each person to answer. She did not accept raised hands. When the excavator operator said “fine,” she asked about his left knee, because she had seen it strike the cab. When the rigger said the west wale had held, she asked whether he had seen it or inferred it from the absence of noise.

Nora listened to safety become a series of specific refusals.

“Design deviation?” Lena asked her.

The workers watched without appearing to. Across the road, the traffic controller held a fish truck, the clinic nurse, and a school bus at the red signal. If Nora classified the scour as a reportable near miss, the causeway would remain closed until an independent engineer arrived from Moncton. The island would have the passenger ferry, but the freight barge was not commissioned until next week. The clinic's ambulance could cross to the mainland now or not again before evening.

“Yes,” Nora said. “Unplanned piping at the east interlock and scour beyond the reduced cut.”

Lena wrote it exactly. “Immediate control?”

“No personnel below deck. Survey after drawdown. Armour placement by long reach only.”

“Road?”

Nora checked the settlement trace. The concrete had dropped one point seven millimetres and stabilized. The utility trestle showed no movement. “Single lane, light vehicles, twenty-kilometre limit. Ambulance first. No freight.”

The fish-truck driver would lose his mainland slot. The plant would dock his delivery. Somebody's catch would become bait or waste by noon. Nora could already hear the decision described in the store as proof that restoration valued fish in the water more than fish that paid mortgages.

Lena signed beneath Nora's controls. “Now we own it together.”

It sounded almost generous. Nora knew better than to thank her.

Lena looked at the live gauge. “You had eight minutes.”

“We used six.”

“That isn't what I meant.”

Nora knew. She also knew the crew had completed the cut without injury, the machine was clear, and the temporary sill was holding. Those were facts. She set them around herself carefully.

The fish-truck driver did not let her keep them unchallenged.

He left his cab at the red signal wearing rubber bib trousers and a sweatshirt darkened by deck water. “Light vehicles?”

“Under five tonnes,” Nora said.

“Truck is four point eight empty.”

“Loaded axle exceeds the temporary settlement limit.”

“Loaded with twelve hours' work.”

The refrigerated box carried lobster and halibut packed for a processing slot in Port Sable. Its compressor ran from the engine. Every minute at the barrier consumed fuel and ice, but neither was the actual deadline; the buyer would fill the slot from another boat if this load missed it.

“When?” he asked.

“Independent structural review before freight reopening. Earliest afternoon low.”

“Plant doesn't buy earliest.”

The clinic nurse waited behind him with the ambulance. She stepped out far enough to be seen. “I have blood samples that time out at ten.”

The driver looked back at her, then at Nora. “There. Make us fight and call it priority.”

Lena came to the barrier carrying the incident board. “Ambulance crosses. Fish goes to cooperative ice room. Project pays unloading and second haul.”

Nora said, “That cost isn't authorized.”

“Design deviation line.” Lena tapped Nora's signature. “Consequence belongs to the job.”

“The contract excludes commercial delay.”

“Then use your discretionary risk account.”

“For food spoilage?”

“For the road decision that caused it.”

The driver folded his arms. He did not thank Lena for treating the loss as legible.

Nora opened the project ledger on her tablet. The discretionary account permitted temporary transport and storage arising from access restriction. She had imagined pumps, shuttle vans, emergency fuel. Not a crew unloading fish twice because her safe axle limit had divided their morning.

She entered the authorization.

“Name?” she asked.

“Armand LeBlanc.”

“Estimated labour and ice?”

“You want the number before or after they charge mainland-project rates?”

Lena said, “Both. Estimated now, receipt after. Nobody signs that the receipt makes the catch whole.”

The ambulance crossed first. Workers directed Armand's truck toward the cooperative without charging the time to his crew. Nora added the missed processing slot to the incident consequence, separate from storage cost.

The causeway had moved one point seven millimetres. The decision travelled farther.

At the barrier, Eli had left the ferry wheelhouse and stood watching the new water. He had grown heavier through the shoulders since Nora had last seen him, or perhaps his jacket made him look armoured. His beard was more grey than in the photographs Ruth forwarded without comment.

“It moves,” he said when she approached.

“Water usually does.”

“Road didn't.”

“That was the problem.”

He looked toward the ambulance pulling off the causeway onto the island. “Depends who needed it to hold still.”

Nora wiped her gloves on a rag. “The ferry cleared before we cut.”

“I noticed you deciding that for me.”

“It was a traffic hold, Eli.”

“Good. For a second I thought you'd come home.”

He turned before she could choose among the possible injuries and went back down to the slip.

By the next low tide, the pilot channel had widened one point eight metres beyond its design edge.

Nora walked the basin side with Carys while the survey team set rods behind them. The air had warmed, drawing the smell of bladderwrack from the old headpond mud. Gulls stabbed at stranded worms. Water had combed the silt into parallel ridges except in one place, thirty metres upstream of the cut, where debris lay in a neat crescent.

Carys stopped at the old salinity station and lifted its probe from the mud. “Twelve point three.”

“Model said nine.”

“Juvenile gaspereau won't care which of you was conservative.”

“They can tolerate twelve.”

“For how long?”

Nora checked the instrument history. “You tell me.”

“No. You opened the question.” Carys wiped the probe with distilled water. “That's different from owning the answer.”

They had been separated for three years and could still locate an old argument inside any new measurement. Nora moved to the next stake before Carys could decide whether she had done it deliberately.

“We surveyed this yesterday,” Carys said.

“At ten-metre centres.”

“I crawled it for eelgrass shoots. There was nothing bigger than a bottle cap.”

“The new current sorted it.”

Carys planted the next red flag but did not release the staff. “Sorted from which direction?”

Nora studied the crescent. Its sticks pointed toward the opening, as if the basin had expelled them, although the first exchange had flowed in. “Give me five minutes before you name it.”

“You always think naming is the dangerous part.”

The deposit held ordinary things: twigs silvered by salt, a glove without fingers, three blue mussel shells, a strip of red plastic. Nora photographed the boundary and stepped onto the first board.

Something black protruded at the crescent's centre.

She knew the make before she touched it. Every rescue craft in the region used the same blunt waterproof unit. This one had been struck hard enough to burst the battery door. White salt furred its speaker. The antenna bent from a deep gouge across the casing.

Behind her, Carys called to a technician about sample flags.

Nora turned the radio over.

GV-R7 was etched beneath the belt clip.

Eli had carried R7 past her that morning. She had watched him thumb the transmit key after he cleared the outer buoys.

The display was cracked but awake. Its date read September 8.

Eleven days from now.

Nora heard boots approaching over the boards. She closed her hand around the radio and slid it inside her vest.

For once, the future fit exactly where her father's caliper had been.