City of Legends Series by Cheyanne Young

Maci Might's sixteenth birthday is supposed to be the day she's awarded Hero status. But thanks to a tiny anger problem and a questionable family tree, King City's elders think it's best if she doesn't join the Hero ranks. Determined to change their minds, Maci will break whatever rule it takes to prove she's Hero material. As her hair darkens and her anger grows, everyone turns against her except Evan; a childhood friend turned scientist who may be able to unlock the secrets hidden in her DNA... moreMaci Might's sixteenth birthday is supposed to be the day she's awarded Hero status. But thanks to a tiny anger problem and a questionable family tree, King City's elders think it's best if she doesn't join the Hero ranks. Determined to change their minds, Maci will break whatever rule it takes to prove she's Hero material. As her hair darkens and her anger grows, everyone turns against her except Evan; a childhood friend turned scientist who may be able to unlock the secrets hidden in her DNA. When a villain attacks King City and her dad is held prisoner, Maci discovers a truth she refuses to believe. She may not be a Hero after all-but this time the Heroes of King City need her more than she needs them. And she won't let them down. Powered is the first in a trilogy. less

After rescuing Nova from a life of evil, Maci fears she's made a huge mistake. As if she didn't have enough trouble fitting in with her fellow Supers, Nova outshines Maci in personality and power. In the midst of this one-sided sibling rivalry, humans are dropping dead from a powerful drug that originates in the underground tunnels of King City. Someone is a traitor and Maci wants to capture the villain before anyone else-especially Nova... moreAfter rescuing Nova from a life of evil, Maci fears she's made a huge mistake. As if she didn't have enough trouble fitting in with her fellow Supers, Nova outshines Maci in personality and power. In the midst of this one-sided sibling rivalry, humans are dropping dead from a powerful drug that originates in the underground tunnels of King City. Someone is a traitor and Maci wants to capture the villain before anyone else-especially Nova. With Nova in the spotlight, Maci needs to set aside her jealousy before more humans die and the future of King City is changed forever. less