The sixth volume in a series of Star Trek: The Original Series novelizations written by James Blish and published by Bantam Books.
Includes six stories:
The Savage Curtain
The Lights of Zetar
The Apple
By Any Other Name
The Cloud Minders
The Mark of Gideon
Kirk, Spock, Bones and the others of the Enterprise find a deadly Eden, discover elemental life forces and planetary death wishes, and even meet Abraham Lincoln and Genghis Khan, as they speed through space on new assignments into the unknown.