Esmerelda Castello

Esmerelda Castello (alias Esmerelda Castle) is the main antagonist of Charlie Thorne and The Lost City along with her brothers, Johnny and Paulo.

Biography
Esmerelda Castello was a marine biologist before turning to a life of crime. She first encounters Charlie Thorne and seeks her out to help her crack a Charles Darwin code discovered on a 200 year old tortoise shell. After Charlie finds the first clue, Esmerelda betrays her, demanding what she found, but she escapes.

Esmeralda and her brothers attack Charlie, Dante Garcia, and Milana Moon in the Amazon basin via plane. They end up crashing and Esmeralda's face is burned badly, destroying her beauty, which infuriates her. Charlie, Dante, and Milana apprehend them and drop them off, but Ivan Spetz arrives and frees them. Ivan and the Castellos team up and eventually find the site of Charles Darwin's hidden discovery, a lost Incan city of stone.

They ambush the Charlie and her team, but quickly find out about the living tribe of prehominids there. Esmerelda manages to capture Charlie and her prehominid friend Eve with Ivan's help, but her brothers are killed by an anaconda. Charlie and Eve are brought to an SVR helicopter, and Charlie uses bullet ants to incapacitate Ivan and the pilot, but Esmeralda is unaffected due to her pain immunity and fights Charlie. She and Ivan meet their end when the helicopter crashes and Charlie jumps out with Eve.

Appearance
Esmerelda is described to be striking with sharp features and big eyes. Her skin tone is unknown because Stuart Gibbs wants you to envision the character. She has a scar/burn on her cheek where she got burned while shooting at Charlie, Dante and Milana.

Family
Esmerelda's father was obsessed with Darwin's treasure, he spent his last moments alive pouring over the new info. She devotes her entire life to discovering Darwin's treasure because of her father Esmeralda hates the because there is no class, wine, art, or good food. The Castellos all share a unique genetic trait, where they barely feel pain; the pain quickly passes after the first shock of it. This makes Esmeralda and her brothers difficult to incapacitate.