I'd like to try one-on-one RPGing with my partner and am looking for an initial high-fantasy adventure to get started with.
My original plan was to adapt the Fighting Fantasy gamebook, 'The Warlock of Firetop Mountain'. (I gave up on it 17 days in, but I recently came across it again and decided to finish it off, so it's fresh in my mind.) However, I realised that dungeon-crawling through a variety of monsters, horrors and puzzles is not, on its own, going to be enough to provide a compelling story for my partner. I think I need something with more interaction with likeable and engaging characters, something which is completely absent from The Warlock of Firetop Mountain. I'm not looking for 'Care Bears: The Adventure', just something that is closer in tone to, for example, Harry Potter, in that there are defining moments of horror, violence and sinister intrigue, but also plenty of humour, camaraderie and general non-violent interaction.
So, does anyone know of such a character-focused adventure in a fantasy setting? I don't mind what the specific fantasy setting is or what the rules are, as I will just adapt to the ruleset I end up using.
To add detail to the context: I haven't RPGed for 13 years and my partner never has. If this first try doesn't appeal to her, I fear I'll put her off for life!
UPDATE: I'm looking for an adventure that was created specifically to be an interactive adventure with multiple paths. I'm not looking for story ideas. I'll adapt the adventure to my chosen ruleset, but I'd rather start with something that's designed to be interactive in some way. I don't mind whether it's an actual tabletop RPG adventure, a solitary gamebook, or even a computer game.