You loved how Georgiana’s experiments at Stranje House pulled her into a web of French agents, secret inks, and government schemes—right down to Miss Stranje’s covert operations and Lord Sebastian’s hush‑hush project. In A Spy in the House, Mary Quinn goes undercover in a wealthy London household to trace smuggling and corruption that reach into Parliament. The cat‑and‑mouse investigations, hidden identities, and late‑night eavesdropping deliver that same glittering, dangerous world of espionage you enjoyed in Georgiana’s hunt for the invisible‑ink formula.

If Georgiana’s stubborn brilliance—blowing up curtains, challenging her keepers, and turning Stranje House’s ‘reform’ into a launching pad—won you over, you’ll click with Ismae. In Grave Mercy, a girl sold into marriage escapes to a convent of assassin‑nuns and forges her own path amid court danger. Like Georgiana stepping from misfit to indispensable operative, Ismae claims her power and proves her worth where men underestimate her, all while navigating deadly intrigue.

You enjoyed how sparks flew between Georgiana and Lord Sebastian even as secrets, science, and national security kept getting in the way. In The Dark Days Club, Lady Helen’s uneasy alliance with the scandalous Lord Carlston simmers as they hunt a hidden threat stalking Regency London. That tension—shared missions, clandestine meetings, and feelings complicated by responsibility—echoes the push‑and‑pull you liked in Georgiana’s partnership with Sebastian.

If Miss Stranje’s ‘reform school’—where lessons in deportment hide lock‑picking, codework, and clandestine errands—made you grin, Etiquette & Espionage doubles down on that playful twist. Sophronia is whisked to a finishing school that quite literally trains intelligencers, and the quips, hijinks, and clever set‑pieces feel like the cheeky side of Georgiana’s escapades when invisible ink and secret passages turn learning into adventure.

Georgiana’s race to perfect an invisible‑ink formula for the British war effort—and the kidnappings and betrayals dogging her steps—mirrors the urgent quests here. A privateer’s crew and a young Royal Navy officer must assemble a mysterious device that could turn the tide against Napoleon. Like Georgiana’s focused, do‑or‑die objective for Miss Stranje and Lord Sebastian, this is a mission story that sweeps you from one perilous turn to the next.