Masaba is a class M planet located on the opposite side of the space of the Romulan Star Empire away from the Federation. Masaba was somewhat near Lapith and Ibex.
History
In the 23rd century, Masaba was home to a primitive humanoid civilization, the Masabans-or, as they refer to themselves-"The Cat People." The planet had once been much more technologically advanced, with ruins of great computer-controlled installations hidden in Masaba's wilderness. Spock said that the ruins, which made use of dilithium, resembled an Aztec temple. The landscapes of the planet included a swampy region with swamp beasts, and plains abundant with shooting plants, also infested by Masaban blood worms.
The Cat People established a settlement south of the plains and were seen living with a large number of black cats among them. They revered the ancient ruins and a Druid, who was the bearer of the Eye of Kakos, occasionally entered the temple to pray for good weather. That was until he was killed by a swamp beast.
In the 2260s decade, the Starfleet starship USS Enterprise was stranded near Masaba. During the dimensional transfer, it depleted its dilithium and was locked in a decaying orbit above the planet. As traces of dilithium were detected on the planet, a landing party consisting of Kirk, Spock, and McCoy, visited this world. They made contact with the Masaban tribal chief, then brought a shooting plant to the medicine man in order to make for them a repellent against the blood worms. Fighting the swap beasts, they recovered the Eye of Kakos in order to enter the temple.
After overcoming a puzzle of alien symbols, the crew activate a powerful computer that allowed them access to local star chart of the unknown region, as well to a store of much-needed raw dilithium. (TOS video game: 25th Anniversary)