The first things he noticed about her were the intelligence and humour in her dark eyes. The third thing he observed, but not in time, was a swift right jab before he fell backwards on his arse, and then he heard the music in her laughter as she helped him to his feet, and he was certain he was in trouble, but more than that, he was positive she was trouble.
Nevertheless, he retrieved his hat, then bowed in her direction and held out his hand. "Sherlock Holmes."
She smiled at him and after a moment, removed her own hat and let her hair down, then grabbed his hand and shook it heartily. "Irene Adler. I know exactly who you are, Sherlock Holmes. You and I will have great fun, I do believe."
And with a wink, she turned and disappeared into the crowd, and for the first, but certainly not the last time, he gave chase, though he knew better.