Infinity's Shore by David Brin, Sci Fi. Book is in good condition, all pages intact.
The ragtag inhabitants of the planet Jijo brace themselves as enemy ships fill the sky. Their only hope lies in a scientist who must turn against her benefactors, a heretic who must embrace their old religion, and four children with only stories to inspire them. Part of the "Uplift" series.
Sci Fi Books
ספרי מדע בדיוני
David Brin