Steam Detective: the Grand Duke at the Beginning Begged Me to Collect the Corpse

Good day, sir. I was dying, and as always, this threatening letter was about to come true, announcing my death. I invite you to come, not to find a murderer, but to explore a truth that keeps everyone alive. Eastern detective Bai Le received a commission letter from a distant city-state, announcing the death of a grand duke. In Lemon in the steam age, Belle encountered difficult murder cases, triple murders, serial executions, devil's roulette, court traps, historical mysteries... Seven cases, seven schools of reasoning, and seven blood-stained gold coins hide the opportunity for him to return home.