One by one, they finished. Mack graded their answer sheets in real time, his red pen moving like a scalpel.
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“Forget what you know about welding,” Mack said, his voice gravelly over the hum of exhaust fans. “You are no longer a welder. You are an archaeologist. The weld is the artifact. You are here to read its story—the good, the lazy, and the deadly.” One by one, they finished