Four brave siblings were searching for a home – and found a life of adventure! Join the Boxcar Children as they investigate the mystery of a hidden cave in th

Four brave siblings were searching for a home – and found a life of adventure! Join the Boxcar Children as they investigate the mystery of an old schoolhouse

When the Alden children climb to the top of Old Flat Top Mountain, they encounter a mysterious mountain cave, a perilous rockslide, and a secret treasure.

The Boxcar Children are hiking up a mountain when a rockslide reveals a cave with a big secret! Adapted from Gertrude Chandler Warner's story of the same name,