At the Penumbra, you might follow Juno Steel, a brooding, sharp-witted private eye on Mars, as he tangles with an elusive homme fatale, tracks dangerous artifacts of an ancient alien civilization, and faces his three greatest fears: heights, blood, and relationships. 

Or you might enter the world of the Second Citadel, where the merciless Sir Caroline must corral a team of emotionally distraught all-male knights to defend their city against mind-manipulating monsters...even the ones they’ve fallen in love with. 

Or you might tune into the not-too-distant future of Thirst, a future America somehow even worse than the present, where four couples must survive a dangerous reality TV competition designed by a sadistic host and a cheerfully violent Algorithm.

These audio dramas and more await you in the Penumbra, dear traveler. We hope you enjoy your stay. (Start with "1.01: Juno Steel and the Case of the Murderous Mask" to follow the Juno Steel series, "1.09: Second Citadel - The Head of the Janus Beast" to follow the Second Citadel series, or "THIRST S1E1: Icebreaker" to listen to the Thirst series. Or, listen from oldest to newest to hear everything as we released it.)

The Penumbra is created and produced by Harley Takagi Kaner and Kevin Vibert. Follow us on Bluesky (@thepenumbrapod.bsky.social‬), Tumblr (@thepenumbrapodcast), TikTok (@thepenumbrapodcast), Instagram (@thepenumbrapodcast), or Facebook (The Penumbra Podcast). 

For early and ad-free episodes, production scripts, commentary tracks, blooper reels, livestreams with the creators, and much more, you can find The Penumbra Podcast: SPECIAL EDITION at: https://thepenumbrapodcast.supercast.com

You can find all of our transcripts here. If you would like to view trigger warnings or SFX attributions, you can scroll to the end of the appropriate episode transcript: https://drive.google.com/drive/u/2/folders/1bnWLw5dTW4l9A0bmOMzEiy6XqqsXHHi_

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When Gloria took a waitressing job at a diner outside of Phoenix, she didn't realize she was now an employee of Midnight Burger, a time-traveling, dimension-spanning diner. Every day Midnight Burger appears somewhere new in the cosmos along with it's staff: a galactic drifter, a rogue theoretical physicist, a sentient old-timey radio, and some guy named Caspar. No one knows who built Midnight Burger or how it works, but when it appears there's always someone around who could really use a cup of coffee. "When the waves of the universe crash unrelentingly, when the stars seem indifferent to your plight, suddenly there is a diner." We open at 6.

• Aired every night at midnight in most markets, creating a "late-night spooky radio" vibe.
• One of the last successful network radio drama series before the format faded.
• Gained a cult following and is still beloved by old-time radio (OTR) fans today.     

• E.G. Marshall (1974–1982, primary host) – Known for his deep, authoritative voice, setting a chilling tone.
• Tammy Grimes (1974–1977, occasional alternate host) – Provided a more whimsical, sometimes eerie presence.
• The host would introduce each episode with a dramatic monologue, often breaking the fourth wall to engage listeners.