NOTE: This is apparently the same book as Book 9570, but with more pages.

Book #9670

Contains three stories:
1 – The Enterprise encounters the descendants of circus entertainers stranded on an unknown planet. The crew dresses in costume to visit the planet. Spock is a pirate.
2 – The Enterprise responds to an emergency on Onyx where the seeds of a strange sunflower-like plant have burst and put everyone to sleep. Kirk and Spock spray the plants with chemicals and save the day.
3 – The Enterprise restocks a zoological colony with animals after an epidemic. A monkey escapes and must be lured back with a banana.