It is a story about friends growing up together as the world suddenly changes and the stars disappear. It turns out that the Earth is enclosed in a time warp so that time outside is moving much much faster than on Earth. But if time is moving so much faster, the Sun might become a red giant soon and everything (and everyone) on Earth would be dead; that’s the apocalyptic part. Then there’s conflict between a father and a son and a love story.
Overall, it has a very well fleshed out plot line and good character development.
It is definitely worth reading.