The Galactic Whirlpool
The Galactic Whirlpool is a Bantam TOS novel, written by David Gerrold, first published in .

Summary 
From the book jacket 
"Captain's Log, Stardate 4496.1. We have broken off our search to investigate, the presence of… of a sensory anomaly."

On a routine mission in deep space, Captain James Kirk and the crew of the  discover a lost city, drifting in space, more than 20 years from the nearest Human colony.

Its inhabitants are human, but so isolated that they are unable to grasp the existence of other worlds besides their own. Outsiders must be demons. Earth is a place that exists only in legend, in the tales of their ancestors. But time is running out for this forgotten civilization… their world is being pulled straight towards the center of a galactic whirlpool, two orbiting black holes in space.

Can Kirk convince them to trust him, before their world is destroyed for ever?

Background information 
In his book , in which author David Gerrold tells how the popular episode of that name came to be written, Gerrold sets out how the concept for this novel arose:
 Gerrold's very first Star Trek story, written after watching the show's premiere in , was a sixty-page outline for an ambitious two-part episode which he called "Tomorrow Was Yesterday". In it, the Enterprise stumbles across Voyager, a generation ship launched from Earth centuries before. Voyager is being drawn into a nearby star, and the Enterprise crew have to convince her inhabitants to restart her engines and change her course. Their mission is complicated by the fact that a long-ago mutiny on board Voyager has left the inhabitants divided into two warring factions, one controlling the command center, the other controlling the engines, with both groups having forgotten that they're inside a spaceship.
 Producer Gene L. Coon rejected "Tomorrow Was Yesterday", but was so impressed by it that he invited Gerrold to meet with him, and eventually to submit more story premises. Gerrold did so, and one of his premises eventually became . In the meantime, Gerrold took the outline for "Tomorrow Was Yesterday", removed all the Star Trek-specific references, and turned it into a film script called Yesterday's Children. When the script didn't sell, he began turning it into a novel, which wound up being about a battle between two starships rather than an encounter with a generation ship. Gerrold succeeded in selling the novel version of Yesterday's Children, which was published in , and which eventually served as the launching pad for his "Star Wolf" novel series.
 When Bantam Books began publishing original Star Trek novels in , Gerrold was approached to contribute. He agreed, and went back to the original sixty-page outline for "Tomorrow Was Yesterday" for the story which became The Galactic Whirlpool.

Characters

James T. Kirk
Kevin Riley
 Arex and M'Ress
The two alien TAS regulars make their first cameo appearances in an original novel with this story. 

 George La Forge
A Starfleet admiral who relayed orders to Captain Kirk regarding the L5 structure. He was descended from a long line of Starfleet officers, dating back to the early vessel Detroit.
This character was named as a tribute to a Star Trek fan of the same name, who would later have the additional honor of having Geordi La Forge named after him.

Lana Shemry
A crewwoman aboard the starship  who was assigned to a landing party mission, under the command of Lieutenant Riley. She was killed, and Riley blamed himself for her death.

References
Earth, galactic whirlpool,

External link 
 

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fr:The Galactic Whirlpool
Galactic Whirlpool, The