The second book was published in 2011. It has now been 9 years between books and there's no sign of book 3 anywhere. His editor posted on social media that the

The second book was published in 2011. It has now been 9 years between books and there's no sign of book 3 anywhere. His editor posted on social media that they haven't seen even a draft of the third book. If you have hope that book 3 exists, I would caution you to reign in your expectations a bit.