The Last Crystal

A summer trip takes an unexpected turn for the Harrison kids when they encounter a Nazi spy on their train journey to Los Angeles. With one sibling kidnapped, J.D., Mary Carol, Robert, and Grace embark on a perilous quest to find the Last Crystal, a magical artifact. Their adventure spans two thousand miles of wilderness, relying on their wits, teamwork, and an old map that only the youngest can decipher. As they navigate danger and discovery, they must confront their fears and unite to rescue their sibling and return home.