After the crash, there was Walt, who was a main character. He was "special." He had a troubled childhood. He was placed in the hands of a stranger, who was his natural father.
In the rear section, two children survived, Zach and Emma. But they were quickly kidnapped by the others (possibly with the help of Cindy who joined the Others).
During the Tailie story, those survivors were terrorized by the Others. During one trek in the jungle, while hiding in the brush, there was a shot of a group of Others passing by from the knee down - - - it looked like children (there was a teddy bear at the end). I thought at that point there may have been a second "group" of island natives, comprised of children like The Lord of the Flies who split off from the adults. This split could have been the reason why a) the adults could not conceive on the island because the renegade children's wish was to curse them; or b) why the Others kidnapped children.
Once Walt left the island, the story of the island children became a great mystery. What happened to them? Throughout the rest of the show, we don't see any children in the Others camp. Then, in a brief instance during MIB's clash at the Temple, we see Emma and Zach - - - but we also see a third child. It was very brief, but it registered as being out of the ordinary. Who was this other child?
Shaun Twiddy was the young actor playing this character. It is in the episode "Sundown," where Sayid returns to the Temple and publicly announces that Flocke has sent him with a message: that Jacob is dead so none of the Temple dwellers have to stay here anymore and that they are free. He says that Flocke (MIB/Smoke Monster) is leaving the Island forever and that those who want to go with him should join him before sundown and be saved, or stay and die. The ultimatum seems to upset Cindy, Emma and Zach. Cindy leaves the Temple with Emma and Zach, but we do not see this third child.
Which begs several questions: who was this child? Why did he stay at the Temple to meet his death? Was his parents at the Temple? Or was he another kidnap victim? If so, why did not Cindy protect him like she did for Emma and Zach? And why was MIB so callous and indiscriminate in killing children?
Since this mystery child is still young, maybe around seven (7) years old, he came to the island after Ben's purge of Dharma. But only Jacob allowed people to come to the island (as his candidates). If the purge was the curse of the Others not being able to bear children, then this mystery child is not a native islander. He seems to be Middle Eastern. Could he have been a reincarnated child of Sayid's soul when he died in the Temple waters?
The one conclusion we are left is this mystery child more likely than not would have perished in the Temple massacre. It is another fact in the theme that ran through the entire series: the mistreatment of children.
