The Sacred Art Of Stealing

The second book in the Angelique De Xavier series, from author Christopher Brookmyre.
Their eyes met across a crowded room. She was just a poor servant girl and he was the son of a rich industrialist.
Er, no, this is a Christopher Brookmyre novel, although the eyes meeting across a crowded room part is true. Where it differs from the fairy tales is that the room in question was crowded with hostages and armed bank-robbers, and his eyes were the only part of him she could see behind the mask. H