The first impression Lucas got as the train pulled into Amsterdam Centraal was the sound. Not loud, not chaotic, but alive in every echo. The soft hiss of bicycle wheels on wet cobblestones, the distant clang of a tram bell, the overlapping murmur of voices in Dutch, English, French, and languages he couldn’t place—they wove together into an unending, gentle song. He pressed his forehead against the cool window,
