Sister Carlotta was a Catholic Nun originally from Catalonia in Brazil. Eventually she came to Rotterdam and helped test potential kids for Battle School. Because of the many homeless children created by Hegemony population control laws, relatively few of the children even got marginal success on tests, so Carlotta set them up to be sent to a Ground School somewhere on Earth. By 1185 b.s.c her early successes had graduated from college. Eventually she came to find Achilles and Bean, who were two of the best she had ever tested. Bean came to her telling that Achilles killed Poke, so Sister Carlotta sent Achilles to a Ground School where he would never hurt Bean, and sent Bean to Battle School. She was killed while travelling to Bean in Thailand to see that he did not suffer from trauma due to a second attempt of assassination. Achilles ordered the airplane she was travelling on to be blown up through a ground to air missile through China.
- "Sacked! A miscarriage of justice. You ought to be shot." - Ender's Shadow, page 371 of 467
- "It isn't lying to tell a bureaucrat whatever story it takes to get him to do his job properly." - Shadow of the Hegemon page 138 of 365
- "No one is a better observer of the folkways of the adolescent male than the adolescent female." - Shadow of the Hegemon page 138 of 451