There are 3 books in the Ghast Explores the Overworld series.
The Ghast Explores the Overworld series does not have a new book coming out soon. The latest book, To the Nether and Back (Book 3), was published in February 2017.
The first book in the Ghast Explores the Overworld series, Life in the Overworld, was published in February 2017.
The Ghast Explores the Overworld series primarily falls into the Horror genre.