Leela, what I like most about this fic is that I accept it from the start; what I mean is that, of course Draco's an accountant and Severus has a bookshop—of course Harry's always getting on his supervisor's tits: you present things naturally, and your storytelling is smooth. I enjoyed reading this fic so much that, every time someone interrupted me, I became rather unpleasantly grumpy because I didn't want to stop. Plot, characterization, pacing—every aspect works delightfully well! Regulus is an inspired addition, and the Snarry is thoroughly satisfying. You've given us a lovely, plausible, multi-layered mystery without belaboring any aspect of it, and you deliver quite a measured, romantic ending that isn't overdone and leaves room for future development between Severus and Harry.
I could go on, but I'd prefer to go reread now. *huggles you* Thank you for this story; it's just a pleasure to read! ♥