4MK Books books in order

The 4MK trilogy by J.D. Barker is a dark and twisty thriller series following Detective Sam Porter as he hunts a meticulous serial killer known as the Four Monkey Killer.

4MK Books in Order

# Title Published Author Buy on Amazon
1 The Fourth Monkey 2017 J.D. Barker Buy
2 The Fifth to Die 2018 J.D. Barker Buy
3 The Sixth Wicked Child 2019 J.D. Barker Buy

The 4MK trilogy by J.D. Barker is a masterclass in modern suspense. Combining the procedural elements of a police thriller with the psychological depth of a serial killer hunt, the series has been compared to classics like Se7en and The Silence of the Lambs.

The story begins with the discovery of a body believed to be the Four Monkey Killer, only for Detective Sam Porter to realize that the killer’s game is far from over. Through a series of diaries left behind by the killer, the trilogy explores a dark and complex history that spans decades.

Frequently Asked Questions

How many books are in the 4MK trilogy?

There are 3 books in the 4MK Books series, published between 2017 and 2019.

What does 4MK stand for?

It stands for the Four Monkey Killer, a serial killer who leaves behind boxes containing the ear, eyes, or tongue of his victims.

Who is the protagonist of the 4MK series?

The series follows Detective Sam Porter and his team as they investigate the crimes of the 4MK.

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