Last s/c/ene

There’s a melody playing but I’ve just noticed a counterpoint singing on some slightly lower instrument. Quite different to the tune you might whistle, but there all along, having a crucial effect. How could I not have noticed this until now in this last scene?

“My hero set off on her motorcycle from London to Istanbul to follow the steps of Florence Nightingale. It was in annexed Crimea, still Ukraine some say, where she was last seen”.