"Like the river in the Underworld?" The association with the name comes immediately, except he doesn't know any version of any myth that makes Lethe sound like Darrow. There's definitely still significance to it and that makes Nova curious.

"It's a city, so there's crime, but after that it gets complicated. You got magic users, mutants, fair folk, whatever. And if that's not enough, sometimes the city just goes apeshit and brings evil gingerbread men to life."