Elementary, my dear SirEyeball! You can thank the Random.org gods, for you have been discovered as the winner of this giveaway! Please, check your PMs!

Thanks to all who participated on this! I'll thoroughly look into each sugestion and will breifly give my feedback.

Thank you very much will look forward to deduce the obvious and solve the Secret of the silver earring

Congrats SirEyeball and thanks again WireHead.

IT'S NOT LUPUS! Wait... wrong Holmes. Move along, nothing to see here. Just a lucky, if disembodied, Eyeball getting congratulations, and a generous WireHead, overburdened by others' gratitude. However improbable it all may sound ;)

Congrats, SirEyeball, and thanks again WireHead! Hope you'll find out some good suggestions to try.

I'd like to add another author using a non-conventional setting (ancient Rome) for his detective stories: the Roma Sub Rosa series by Steven Saylor (the series is noted for its historical authenticity). Great books. :)

(Sub Rosa: in Latin, "Rome under the rose". If a matter was sub rosa, "under the rose", it meant that such matter was confidential.)