Mystery in the Cave (Boxcar Children #50)

Henry, Jessie, Violet, and Benny use to live alone in a boxcar. Now they have a home with their grandfather and they're going on vacation to Dragon's Mouth Cavern. The four Aldens like rock hunting in the are, until Benny finds a sinkhole that leads to the underground caves. While exploring the caves they realized that someone doesn't want them there. But why? Can the Boxcar Children solve this new underground mystery?
ASIN: 0590568981
VSKU: LFV.0590568981.G
Condition: Good
Author/Artist:Gertrude Chandler Warner
Binding: Paperback
Note: Any images shown are stock photographs and product may differ from what is shown.
Condition Notes: Book is in good condition. Minimal signs of wear. It May have markings or highlights, but kept to only a few pages. May not come with supplemental materials if applicable.