This is a brand new, sealed, set of 2 Known Space audiobooks on CD by Larry Niven. All books are unabridged and read by Bradford Hastings / L. J. Ganser. Please see photos for further details. Included:
- World of Ptavvs - 1966 - 5 CDs - 6 hours
- A Gift From Earth - 1968 - 7 CDs - 8.5 hours