Join Alvin, Simon and Theodore as they find trouble on board a cruise.
- Simon plays as Sherlock Holmes, while Theodore plays as his assistant, Doctor Watson.
- A vinyl record of the book by Kid Stuff was included in some of the releases.
- This book was re-released with a cassette tape comprised of the book's text in audiobook form, also by Kid Stuff, in 1984.
The book was illustrated by Corny Cole and Dennis Durrell.