When is book 3 dean koontz Frankenstein coming out?

There is no confirmed release date for a book 3 in Dean Koontz's *Frankenstein* series.

Dean Koontz has written two books in the series so far:

* Frankenstein: (2015)

* Frankenstein: The Monster (2018)

Currently, there have been no announcements from Dean Koontz or his publishers regarding a third installment. However, if you are interested in other Dean Koontz books, you can check out his website or follow him on social media for any updates.