Deciphering the Citadel

I seized the knurled brass tumblers of a three-digit combination lock dangling from the shed latch! Such juvenile cryptography was an insult to my towering intellect. Bracing my boots against the weathered cedar planks, I spun each grooved cylinder with calculated theatrical precision. Click, click, click—absolute numerical alignment! With supreme confidence, I threw my weight downward to trip the locking pawl. Clack-snap! The spring-loaded shackle popped open with explosive velocity, the hardened steel loop snapping straight into the cuff of my glove! I recoiled with an outraged sputter, hopping on one boot while the heavy brass body swung like an insolent pendulum against the timber. A minor kinetic anomaly; the fortress nonetheless surrendered to my supreme intellect!