Dead Roots of the Earth: A Japanese Folk Horror Series (Black Sun, Book 4)

Beneath the Soil Ancient Hunger Stirs Noah Paulson's wife has been missing for five years, and he can't let her go. Together with his dog Beta, he lives a meager existence in Japan, reporting on local crops and refusing to pursue a romantic relationship with his neighbor. A massive earthquake hits. Holes open up in the streets and even inside homes. People go missing. Noah sees this as an opportunity to write a story that will get his life back on track. Yet, the further he investigates, the more he hears his wife's voice in his mind calling him to an isolated mining town where the locals are hiding a terrible secret. Soon, he discovers that there are hungry things down in those holes. Things that won't stay down there for long. This is Book 4 of the Black Sun series, but each book can be read in any order you want.