There are 3 books in the Market of Monsters series.
The Market of Monsters series does not have a new book coming out soon. The latest book, When Villains Rise (Book 3), was published in September 2020.
The first book in the Market of Monsters series, Not Even Bones, was published in September 2018.
The Market of Monsters series primarily falls into the Fantasy genre. This young adult series was written for ages 12-17, but can be enjoyed by adults too.