The Adventure of the Midnight Star by Christine Rivers

In the small village of Silverbrook, four adventurous children—Josh, Marcus, Ruby, and Tonia—discover an ancient map that leads to the legendary Midnight Star, a celestial object believed to grant any wish.

Armed with nothing but their wits, a sense of humor, and a strong bond of friendship, they embark on a thrilling quest full of wild jungles, secret caves, and quirky puzzles. Along the way, they must outsmart rival treasure hunters and learn that sometimes the true treasure lies not in the wish itself, but in the unforgettable journey that brings them together.