This is a imaginative story and a creative use of the prompt. We, the readers, hope along with Mr. Jam that his son is not in the mortuary. You manage to involve us emotionally in the story. This is a great phrase:
there was nothing expect the desolation of night
It is good that you provide a credible explanation for Joy's absence. You continue to hold the reader's attention with this detail.
Thank you for posting this story in the Ink Well community. We appreciate that you support other writers by commenting on their stories.
I am glad I was able to hold your attention, I enjoyed writing about this prompt. Thank you so much for appreciation.