INCLUDES 6 AUDIOBOOK CASSETTES ENCLOSED IN A CLAMSHELL CASE ( WHICH HAS A CRACK AT BOTTOM OPENING). “Adventures in Odyssey: Terrific Tales and Mysterious Missions" is a 6-cassette audiobook set published by Focus on the Family in 1990. The stories are written by the AIO Team and are focused on a Christian theme, making them suitable for children and young adults. The cassette format allows for easy listening on-the-go, making it a convenient and engaging way for young listeners to enjoy the fiction narratives."