The Hardy Boys/Nancy Drew Mysteries/The Mystery of the Diamond Triangle
From The TV IV
| The Mystery of the Diamond Triangle | |
| Season 1, Episode 4 | |
| Airdate | February 20, 1977 |
| Production Number | |
| Writer(s) | |
| Director(s) | |
| The Mystery of Witches' Hollow | The Disappearing Floor |
| The Hardy Boys/Nancy Drew Mysteries — Season One | |
| Please help out by editing it. |
The Mystery of the Diamond Triangle is the fourth episode of the first season of The Hardy Boys/Nancy Drew Mysteries.
Starring:
Guest Starring:
Co-Starring:
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