Buckle up, mystery mavens! In Episode 2 of All About Agatha, we zoom ahead to the Queen of Mystery's second smash hit, The Secret Adversary (1922)—a.k.a. Mr. Brown or the totally non-supernatural Invisible Man! This is our next adrenaline-fueled stop on the ultimate Christie chronicle, diving into all her novels and short stories.

Get ready for the scoop: Broke and bored post-WWI, spunky duo Prudence "Tuppence" Cowley and Tommy Beresford slap an ad in the paper as "young adventurers for hire." Boom—they're plunged into a high-stakes spy thriller! Tasked with tracking a vanished woman, Jane Finn, who's got explosive documents from a shipwreck, they race against shadowy foes to avert a revolution. But who's the elusive mastermind "Mr. Brown," the invisible baddie no one's ever seen? Twists, turns, and tons of red herrings await!

We dissect it Agatha-style: No Poirot this time—just these plucky protagonists keeping you guessing allies from enemies. Gripping action meets brain-teasing mystery, touching on themes like hidden identities, war's aftermath, women's smarts, and even a psycho-deep dive into the villain's mind (that ending? Mind-blowing!). Strengths? Non-stop thrills and clever social commentary. Nitpicks? A tad over-the-top espionage vibes, but hey, it's early Christie magic! Overall rank: A zippy 8/10—dedicated to all us monotony-dodgers craving adventure.

Who's YOUR pick for Mr. Brown? Spill your guesses in the comments, and stick around for Tuppence and Tommy's next caper—more Christie thrills incoming! 🕵️‍♀️✨