Nancy Drew and the Hardy Boys appeared together in this series of mysteries in which the reader controls the outcome of the story by choosing different options of advancing the plot.
Carolyn Keene and Franklin W. Dixon are listed as co-authors and each book contains a forward by them.
Published by Simon & Schuster under their Wanderer Books imprint.
Volumes 5 & 6 were printed on cheap paper which tended to brown rapidly.
Cover Art: Hector Garrido (1-6)
Internal Illustrations: Paul Frame (1-6)
Cover Design: William Naegels (1-4); Michaelis/Carpelis Design (5-6)
Design: Stanley S. Drate (1-6)
1: The Secret Of The Knight's Sword - 1984 For Sale
2: Danger On Ice - 1984 For Sale
3: The Feathered Serpent - 1984 For Sale
4: Secret Cargo - 1984 For Sale
5: The Alaskan Mystery - 1985 For Sale
6: The Missing Money Mystery - 1985 For Sale
Two additional titles were