My bookshelf has a soft spot for spy stories that also make my heart race, and I love how modern espionage romance blends danger with that deliciously awkward slow-burn chemistry.
If you want concrete picks, I’d reach for 'Code Name Verity' by Elizabeth Wein for a gutting WWII-set friendship that edges into tender loyalty and quiet affection; it reads like a love letter to bravery and complicated bonds. For something more contemporary and audacious, 'Codename Villanelle' by Luke Jennings (the basis for 'Killing Eve') gives you an assassin/agent cat-and-mouse chemistry that’s kinky, playful, and oddly romantic in its obsession. Olen Steinhauer’s 'The Tourist' is grittier — modern spycraft, moral ambiguity, and a relationship that’s more human than heroic. For a historical-modern hybrid that still feels fresh, 'The Alice Network' by Kate Quinn mixes female spies, wartime secrets, and slow-blooming romance.
I pick these because they show how romance in spy books can be subtle (small acts of trust), explosive (betrayal turned to passion), or bittersweet (duty vs. desire). If you want a lighter route, try novellas or short-story collections featuring spies — they’re great for nibbling between heavier reads. Oh, and audiobooks can be fantastic here: the tension in whispered codes and clipped radio calls really benefits from good narration, at least in my experience.