Rosemary Tilden followed her dog into cave and discovered a secret valley inhabited by Stone Age people. She made friends with a girl whose name sounded something like Myno and her woolly rhino. Myno followed her home, and when they returned to caves landslides had shifted the entrance hiding them. Mr Tilden, an archaeologist, wanted to keep the pair a secret until he had completed his study on them.
- Myno and her Rhino – Judy: #702 (23 June 1973) – #714 (15 September 1973)