Bat Eater by Kyle Lee Baker

Cora Zeng is a crime scene cleaner. But the bloody messes don't bother her, not when she's already witnessed the most horrific thing possible: her sister being pushed in front of a train.

But the killer was never caught, and Cora is still haunted by his last words: bat eater.

These days, nobody can reach Cora: not her aunt who wants her to prepare for the Hungry Ghost Festival, not her weird colleagues, and especially not the slack-jawed shadow lurking around her doorframe. After all, it can't be real - can it?

After a series of unexplained killings in Chinatown, Cora believes that someone might be targeting East Asian women, and something might be targeting Cora herself.

Soon, she will learn . . . you can't just ignore hungry ghosts.