It could be a vengeful spirit. Maybe someone who had a bad experience during Christmas in the past and now haunts the place, leaving those footsteps as a sign of their presence.
I think 'Footsteps in the Dark Short Stories' might be filled with mystery and suspense. The 'footsteps in the dark' gives an immediate sense of unease. It could be about various things like a character being haunted by the sound of footsteps at night, or it might be a metaphor for the approach of danger or an unknown mystery.
The 'Footsteps in the Dark' novel could potentially revolve around a character who is being haunted or followed by these footsteps in the dark. It might be a thriller where the main character has to figure out who or what is making those footsteps before something bad happens to them. Maybe it's set in an old, spooky place like an abandoned mansion or a dark forest.
The true body of the Yellow Emperor was buried in Qiaoshan, Huangling County, Yan 'an City, Shaanxi Province. The Mausoleum of the Yellow Emperor was called the Bridge Mausoleum in ancient times. It was the place where emperors and famous people sacrificed to the Yellow Emperor. The Mausoleum of the Yellow Emperor was regarded as the mausoleum of the Yellow Emperor Xuanyuan, the ancestor of the Chinese nation. It was one of the first batch of national key cultural relics protection units and national intangible cultural heritage. Although there were other places mentioned, such as Lingbao in Henan, Qingyang in Gansu, Pinggu in Beijing, etc., Qiaoshan in Huangling County, Yan 'an City, Shaanxi Province was considered to be the main burial place of the Yellow Emperor.
Xinzheng in Henan Province was not the location of the Mausoleum of the Yellow Emperor. The Mausoleum of the Yellow Emperor was located in the north of Huangling County, Shaanxi Province. Xinzheng in Henan was the hometown of the Yellow Emperor. Every year, on the third day of the third lunar month, the ancestral worship ceremony was held in the hometown of the Yellow Emperor, but it was not the location of the Yellow Emperor Mausoleum.
I don't know as I haven't read the book. But it could have a detective as a main character if it's a mystery novel related to the footsteps in the dark.