Really liked this Space based Sci-Fi book – Suggestion

Hey everyone,
I recently found this Science Fiction Space genre book on Amazon, and thought to give it a try. It was quite niche and I like exploring books so yeah…
It's basically a story, where (No spoilers, just the starting chapter)
The protagonist gets a space tour offer in the year 2057, and he and several other people go on that tour to Moon. On the way to the Moon, they come to know about something BIZARRE, something that will ruin their lives forever, and change everything in the story.

Right now I have reached Chapter 4 and I am genuinely enjoying it, completely hooked. It's an indie book, so it was good to explore something new. Plus it was really affordable.

Let me know if you want to know about the book, I'll DM you the details, since I don't know if it's okay to share the details here lol