I see what you mean, but I don't think I gave away too much of the plot. The back of the book itself provides all those same details, other than the word "Moon" which is revealed in the first sentence of the book.
I have this book on my shelf to read and, as with most books, I try not to read synposes or cover details in advance, preferring instead to have it be as much of an unknown journey as possible, so ... thanks for giving away what sounds like a fundamental part of the book and arguing against perhaps editing your original post.
https://images-na.ssl-images-amazon.com/images/I/515blU3eIzL...