"The World Tree"  is a Short Trip  written by Nick Slawicz, released by Big Finish Productions in December 2022. The story is performed by veteran Big Finish actor and director, Lisa Bowerman. "The World Tree" is the seventh winner of Big Finish's annual Paul Spragg Memorial Short Trip Opportunity , which is a competition for inspiring writers to submit their story ideas to the company. Hopeful applicants must provide a 500-word synopsis and an additional 500-word prose "sample" which is then reviewed by a panel of judges. The winning applicant must then complete their entry along with input from Big Finish and the final result is recorded and released for free on the company's website in December of the same year. Past winners of the Paul Spragg Memorial Short Trip Opportunity  have gone on to continue their writing career with Big Finish and beyond.