The Lighthouse at the Edge of the World by J.R. Dawson

At the edge of Chicago, nestled on the shores of Lake Michigan, there is a waystation for the dead. Every night, the newly-departed travel through the city to the Station, guided by its lighthouse. There, they reckon with their lives, before stepping aboard a boat to go beyond.

Nera has spent decades watching her father—the ferryman of the dead—sail across the lake, each night just like the last.

But tonight, something is wrong.

The Station's lighthouse has started to flicker out. The terrifying, ghostly Haunts have multiplied in the city. And now a person—a living person—has found her way onto the boat.

Her name is Charlie. She followed a song. And she is searching for someone she lost.