The Three Investigators, aided by their friend Allie, try to untangle the unusual circumstances surrounding an abandoned mine.
- ISBN10 039483321X
- ISBN13 9780394833217
- Publish Date 12 September 1976
- Publish Status Out of Stock
- Publish Country US
- Imprint Random House Books for Young Readers
- Format Paperback (US Trade)
- Pages 152
- Language English