Released On: July 19, 2016
**This episode contains spoilers for Extinction, part of the Invasion series, as well as earlier books in the series.**
Invasion is a series that Sean and Johnny have had a blast writing, and Extinction is their absolute favorite book in the series. In today’s episode, they share the struggles and challenges, as well as the amazing moments and triumphs along the way. If you enjoyed the book, you love hearing what went on behind the scenes, especially the genesis of Stranger as a character.