The phrase ‘dead of night’ refers to the time during the night when it is the darkest and quietest, typically around midnight or shortly thereafter. This period is characterized by a profound stillness, where the world seems to be at a standstill, and any disturbances are minimal.
Historically, it emphasizes the absence of light and activity, evoking a sense of eeriness or tranquility. It’s often used in literature and storytelling to create a mood of suspense or to depict a setting that feels deserted and haunting.