Create a realistic, 8k cinematic scene depicting King Darius signing a malicious decree, with the shadowy figures of conspirators lurking in the background. Illuminate the scene with a dark, ominous light, symbolizing the malevolence of the decree. Pay meticulous attention to the details of the surroundings, showcasing an atmosphere of deceit and treachery. Capture King Darius's expression, conveying a sense of coercion, manipulation, and a commitment to nefarious deeds. Detail the royal attire and gestures with historical accuracy, fostering an authentic representation of the ominous setting. Convey the foreboding nature of the decree, emphasizing the influence of conspirators on the king's decision. Illustrate the scene with a sense of tension, darkness, and the potential harm of the decree.