It was a prison. A cave underground, being used to keep scores of cubs captive - tiger cubs, lion cubs, cheetah cubs... you name it, they were there. Little had anyone known that Zira hadn't died when she fell into the river, but had survived and had been kidnapping cubs from their families, in an effort to build a new pride and take over the Pridelands once and for all. The cubs were kept in drury and unpleasant conditions. They were fed little, watered little, and never saw the light except what little, blue-tinted rays managed to enter the cave. They were forced to fight constantly, in preparation for an epic battle against the Pridelanders and the Outlanders who had joined them.
One single cheetah cub, one night, managed to slip away. He was bold - he went right behind Zira's back, nearly stepping on her tail on his way out. The cubs were taught to fear Zira, and never to go near her. This way she could sit near the cave entrance and none of the cubs would go near it.
The cheetah cub, bruised, bloody and weak from Zira's cruel treatment, silently dashed out the hole and toward the tall silhouette of Priderock, as his little paws took him through the cold rainy night.
Hours later, as the sun was coming up, he collapsed behind priderock, near the hold Kiara had used to sneak away to go and find Kovu after his exile.
TLK characters
Kovu: NukaKun
Kiara: Kopa23
Simba: NukaKun
Nala: SillyDogTheGreat
Sarabi: Zuri
Zazu: SnowyCheetah750
Vitani: Kopa23
Zira: LilTiger
Cubs captured by Zira
cheetah cub/male - named Snow: SnowyCheetah
leopard cub/female - named Kami: LilTiger
tiger cub/female - named Lilly: LilTiger
lion cub/female - named Silly: SillyDogTheGreat
lion cub/female - named Rela: SillyDogTheGreat
tiger cub/female - named Zola: LionPrincess
lion cub/male - named Shwari: Kivuli
(more cubs added as people who join design them)