Roger's eccentric, junk-collecting friend Kenneth takes him on an awesome undersea ride in a homemade submarine. Their visit to a subaqueous cavern turns up a wonderful surprise: a cache of supervaluable baseball cards!
- ISBN10 0679815694
- ISBN13 9780679815693
- Publish Date 27 August 1991 (first published 1 January 1991)
- Publish Status Active
- Publish Country US
- Imprint Random House Books for Young Readers
- Format Paperback (US Trade)
- Pages 48
- Language English
- URL https://penguinrandomhouse.com/books/isbn/9780679815693