Full Disclosure: I am the author of this book, which is why I didn't rate it; I would have given it 4 or 5 stars.
Pegasus is book 2 of the Outlander Chronicles series. Eighty years after a global pandemic (genetically engineered small pox) decimated the Earth's population, a small community of people are committed to restarting culture and civilization. They call themselves Phoenix, which was also the name of book 1. Pegasus begins a week after the Phoenix community has finally crossed to the west side of the Mississippi River.
In an effort to get away from murderous roving gangs, they head for the interior of the North American continent (Colorado), which they believe had been fully depopulated.
The journey is fraught with accidents, deadly ambushes, wild animal attacks, extreme weather, and other obstacles the Phoenix community must survive and overcome if they are to reach their goal.
Pegasus has a variety of rich, deeply developed characters that you will wind up loving as they travel westward. As an author, I can't wait to renew my acquaintance with them as I write book 3 (Outlander Chronicles: Icarus) which will probably be available in late 2023.