https://www.reddit.com/r/WritingPrompts/comments/jrpt0d/eu_write_a_letter_from_the_front_written_by_a/ FROM: DSS HOWARD TO: Agent CANDID If you're reading this it means... well it means a number of things....
Soul
https://www.reddit.com/r/WritingPrompts/comments/j8jtx4/wp_humanity_has_been_driven_into_the_sea_by_the/ Humanity has been driven into the sea by the undead. 100 years later the boats and ships are sinking...
https://www.reddit.com/r/WritingPrompts/comments/j6g2ah/wp_the_hellish_trenches_of_the_great_war_were_dug/ This only took three tries to get something coherent and relevant to the topic that was good enough quality...
The Devil doesn't offer to buy souls anymore and offers soul mortgages instead. Pay off your loan within thirty years...