Fallout; Austin

It's been 12 years since Austin last saw the Lone Wanderer once they had completed Project Purity and fought the Enclave together, and another 2 since he last saw the Sole Survivor after he disappeared after taking down the Institute, the Brotherhood of Steel, and Strengthened both the Commonwealth's Minutemen, and the Railroad. But the world is still a hellhole after everything he and his old friends have done together, he hasn't heard from anyone in the Capital Wasteland in years, once Project Purity was done and over with, he left for Boston to find some way to settle-down and start his own life, start a farm like he wanted to before he met the Lone Wanderer, and that's what he was going to do, until he met Lucas, the Sole Survivor, and through Lucas, he met Piper Wright, a reporter in Diamond City, Austin and Piper eventually, through their stubbornness and bullheaded rivalry to see who was the Sole Survivors favorite Companion, got married, and Piper eventually became Pregnant, and although Austin has put his old Sequoia gun from his time in the New California Republic Rangers in his younger years, a new threat has risen in the wasteland, not just the Commonwealth, but for the Capital Wasteland as well, bigger than the Legion, bigger than the Enclave, bigger than the Institute, Austin will have to leave a clean life and return to the darkness of his past to defeat what not only comes for the land, but what comes, comes for him, men from his past who will stop at nothing to destroy everything he's done to redeem himself, men who will stop at nothing, to kill him.
Note; This book is based off the Fallout Game Series