From the maw of the iron tunnel, a low growl reverberated, a mechanical beast stirring from its slumber. Diesel 10, the ochre terror of Sodor, dominated the Dieselworks yard. The air hung thick with the metallic tang of oil and the grinding of gears, a stark contrast to the sweet scent of coal and steam that the other engines favored. Here, in this quarry-like domain, he reigned supreme. Pinchy, his malevolent claw, twitched restlessly, casting elongated shadows across the grimy stone floor. Sparks flew as a welder, dwarfed by Diesel 10's massive frame, attempted to repair a damaged coupling on a nearby truck. The hiss of the welding torch punctuated the rhythmic clanging of Den and Dart, the resident head diesels, as they shuffled wagons with practiced efficiency. Diesel 10 surveyed the scene with cold, calculating optics. The light glinted off his tan stripes, highlighting the formidable engine beneath. He despised the steam engines, those archaic relics of a bygone era. He longed for the day when they would all be rusting in the scrapyard, replaced by superior diesel power. A pebble crunched under his heavy wheels as he shifted his weight, the slight sound amplified in the cavernous space. He could hear the distant rush of wind through the tunnel, a reminder of the outside world, a world he intended to dominate. His gaze fell upon the elevating turntable, leading to his private shed within the main building. A twisted grin formed on his grille. Soon, his plans would be set in motion, and Sodor would tremble before the might of Diesel 10 and Pinchy. The fate of the steam engines hung precariously in the balance, their happy whistles soon to be silenced by the roar of diesel power. "Who wants to work a livelong day, anyway?" Diesel 10 chuckles