Mary Martinand her brother, John, make a pet of a stranded dolphin, Finny, and teach him to do tricks. But Finny is taken by Sam Barker, a showman, as the star attraction of his oceanarium. Mary and John go to the show-ground at night to feed Finny and are caught by Bruton Finny’s cruel trainer. Barker blackmails Mary to become Finny’s trainer as Burton has not had success in making him do tricks.
- Art: Rodney Sutton
- Finny – Judy: #278 (8 May 1965) – #284 (19 June 1965)