Found it.
Big Mason's voice came from underneath Cole Mercer's motorcycle, muffled by steel and rubber, flat with the particular satisfaction of a mechanic who has caught a problem by the throat. He slid out on the creeper, one massive hand holding up a short section of fuel line no longer than a school ruler.
Cole crouched beside him. "Old hose?"
Not exactly. Mason held the hose up to the light coming through the open bay door. A hairline split ran along one side of it, thin as a paper cut. He squeezed the rubber gently between thumb and forefinger — and the split yawned wider with a soft, sickening crackle, like stepping on thin ice. A few more millimeters of fissure opened while they watched.
Cal, standing behind them, let out a low whistle. "That thing was about to let go completely."
Mason wasn't looking at the split anymore. He was turning the hose over in his hands, frowning at the printed markings along its length the way a man reads a label he doesn't trust. His frown deepened.
There's your problem, he said quietly. "This isn't fuel line."
Cole stared at him. "What?"
This is industrial vacuum hose, Mason said, tapping the markings. "It's rated for air, not gasoline — and definitely not the ethanol they put in gasoline now. Ethanol eats this stuff from the inside out. It softens, it swells, and then — " he gestured at the split, " — then it does that."
Jack, standing near the workbench with his backpack still on one shoulder, felt something cold move down his spine. He thought about the thin silver trail he had seen creeping across the concrete not an hour ago, moving patient as a snake toward the glowing heater. He thought about his father's voice, patient and a little exasperated, the way it always got when Jack didn't check something twice: *Look low, Jack. Vapor moves before flame does.*
I replaced those hoses last year, Cole said slowly.
Mason looked up at him. "With what?"
Kit from Delaney's. The whole thing in one bag — hose, clamps, filter.
Mason went very still.
Cal said, "I bought my kit there too." Deke and Pritchard exchanged a look, and Pritchard nodded once. "Mine came from Delaney's also," Deke said.
The atmosphere in the workshop changed the way air changes before a thunderstorm. Jack could feel it on his skin. Six grown men, and every one of them was doing the same arithmetic in his head, counting months, counting miles, counting the times they'd smelled something faint and told themselves it was nothing.
Cole walked to the parts shelf. "Check the packaging," he said. "Somebody's got an unopened kit. Cal — you bought two, didn't you?"
Cal dug through a box under his workbench and pulled out a sealed plastic bag: DELANEY'S MOTORCYCLE SUPPLY — FUEL LINE REPLACEMENT KIT. Inside, coiled neatly, was black hose identical to the one in Mason's hand.
Mason took the bag, slit it open with his pocketknife, and uncoiled the hose. He read the markings along its length, lips moving silently. Then he swore — quietly, fluently, and at length — in a way that made Jack glance toward the office door to make sure no customer had walked in.
It's the same, Mason said. "Same vacuum hose. Somebody packed the wrong tubing into these kits and sold it as fuel line."
Jack watched them, the backpack suddenly heavy on his shoulder. "How many bikes have it?" he asked.
Nobody answered immediately.
That was answer enough.
Cole pulled out his phone. "Everybody who bought one of those kits gets called today," he said. "Right now. Mason — you and Cal start a list. Names, numbers, which bike. We check every single one."
What followed was the kind of organized chaos Jack had only ever seen at his father's firehouse during a drill. Cole worked the phone, his voice never rising. Mason produced a battered composition notebook and started a list — names, numbers, which bike. Cal took the shop's landline. One by one, motorcycles started arriving — rolling in off the street, riders killing their engines in the lot with worried faces, the news traveling through the club's group text faster than any of them could ride.
Jack stayed out of the way near the office door, but nobody told him to leave, and that felt significant in a way he couldn't quite name. He watched Big Mason slide under bike after bike, his huge hands surprisingly gentle on fuel lines, checking, squeezing, reading markings. He watched Cole crouch beside each rider and explain what they were looking for, his voice steady. He watched Ray Dalton stand in the middle of it all like a white-bearded lighthouse, directing traffic with a rag still in his hand.
Within the hour, seven motorcycles had been checked.
Three of them had the wrong hose.
On one — Pritchard's bike — the vacuum tubing had already begun to crack along its length, a lacework of tiny fissures that Mason said would have split wide open within weeks. On the other two, the rubber had gone soft and spongy to the touch, swelling slightly at the clamps, the way a bad thing swells before it breaks.
Jesus, Pritchard muttered, staring at his own fuel line in Mason's hands. "I've been riding my kid to school on this."
Nobody had anything to say to that. There wasn't anything to say.
More motorcycles kept arriving through the afternoon, until the lot at Mercer Motor & Cycle looked like a rally staging ground. Deke's bike was third in line — his hose was clean, original factory line, and the relief on his face was so naked Jack had to look away. Not everyone was lucky. An older rider named Sweeney watched Mason squeeze his fuel line and listened to the faint crackle, and just shook his head slowly, the way men do when they've been handed a second chance they didn't earn.