The new setting of the Survivalist series continues to grow on me as Ahern weaves together various plot threads and factions into his longform storytelling; despite the shortcomings on the prose front. The Terror starts off with a big, as a major character is killed off setting in motion a revenge story. While a pretty standard trope, I admit I've grown fond of the Rourkes, Natalia, and Paul throughout the past 13 books and that has me more invested in the character arcs.
Vladmir Karamatsov is undeniably the big bad of this current mega-arc; striking at the heart of the Rourke clan and making it clear he wants to rule the world. John and Natalia set out to assassinate Vladmir, while he searches for a doomsday weapon from the Night of the War. Michael also has a prominent role in this story; but I won't say more to avoid spoilers.
I have noticed Ahern's prose while descriptive at times, has grown more repetitive which one can say is to be expected as we're over a dozen books into this series. It's a small complaint though. I still enjoy the Survivalist series for being some good pulp. 2.5/5 stars, but a solid 4/5 as a piece of pulp.