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The world of “Welcome to Night Vale,” the popular fiction podcast made up of dispatches from a surreal Southwestern town, is getting bigger.

Joseph Fink and Jeffrey Cranor, the show’s creators, are starting their own podcast platform, Night Vale Presents — along with a new fiction series, “Alice Isn’t Dead.” The podcast, which follows a truck driver who travels the United States in search of her wife, begins March 8 with a season of 10 episodes.

“Alice Isn’t Dead,” written by Mr. Fink, takes its inspiration from his experience touring around the country for live editions of “Night Vale.” (The show passes through New York this weekend, with four performances from Friday through Sunday at El Museo del Barrio.) “I’ve spent a lot of time on the road,” he said in an interview. “Looking out a window, you have less context, and you have to make up your own story. I started writing around that: seeing the world from a driver’s seat.”

Given the creative minds involved, listeners can expect the straightforward premise of “Alice Isn’t Dead” to get strange quickly: The truck driver is to come across towns lost in time, quasi-human creatures and evidence of a larger conspiracy related to her missing wife.

Joining Mr. Fink in making this new series are many members from the “Night Vale” team. Disparition wrote the music for both shows, and the star of “Alice Isn’t Dead,” Jasika Nicole, is a major character in “Night Vale.”

Night Vale Presents plans to introduce more podcasts in the coming year. “We just find podcasting really interesting,” Mr. Fink said, adding that, as an art form, podcasts are still young enough to allow for experimentation. “We want to keep seeing what’s possible, and seeing what we can do with it.”

Mr. Cranor is at work on his own new fiction series, which is likely to come out this summer. He and Mr. Fink are also writing a sequel to their “Night Vale” novel, which was released in November and became a New York Times best seller. This is all in addition to the production of their flagship podcast, which since its debut in 2012 has been downloaded more than 110 million times.