Justice League: New Recruits

Calista Beckett is a foster child in the same situation as Billy Batson... getting shipped off to multiple foster homes after running away in search of a missing family member and dealing with different abilities. This time, Calista gets sent to the same home as Billy and she finally gets the help she needs. Along the way, they both find out about each other's abilities and she gets to meet the famous Justice League... and shows off her skills in battle.

Atlas Beckett is Calista's lost twin who is currently living on the streets. She has the same abilities as her sister, but doesn't think that she is alive and stays alone because of her trust issues. But when she helps a little girl and little boy from starvation on the streets, she proves to someone that she isn't like everyone else. She is confronted by a member of the Justice League and is offered to become her sidekick as well as move in with her so that she has a home. Atlas agrees so long as her friends stay with her and the other children she's help are taken care of.