Betrayal opens with the enslaved children being moved to Orbis 2 for their second rotation of servitude.
The announcement came after charitable groups, which are buying back enslaved Sudanese children and freeing them, reacted angrily to criticism of their actions by Unicef.
Eventually, they discover the reason for the mysterious sickness is that Tenris sent enslaved children known as tokoroths to poison juniper berries.
In 1993, he was nominated for the Nobel Peace Prize for his work with the enslaved children of Thailand.
Indiana also saves many enslaved children.
Spielberg previously explored the idea of enslaved children in the 1984 film Indiana Jones and the Temple of Doom.
The 2nd Mass is joined by Dr. Michael Harris, the only doctor to have discovered how to safely unharness enslaved children.
At 10, he escaped and spent two years encouraging other enslaved children to do the same.
By then he was a widower and had remarried, but he continued to provide for the enslaved children from his first marriage.
Willie, meanwhile, is kept as a human sacrifice, while Short Round is put in the mines to labour alongside the enslaved children.