CallieFan
(Book 1 in the multiverse series.)
Callie Parker is a pretty normal ten-year-old in the Kids Next Door, fighting to protect the rights of kids everywhere with the help of her team, Sector V. She was content with serving the Kids Next Door until her thirteenth birthday, but when strange instances keep happening; Callie, her team, and some new friends are forced to reckon with the fact that there's more dangerous creatures out there than what they're used to. Can the group of friends keep each other safe from what's out there, or will the forces outside of their control snuff them out before they get the chance to fight back?
(I apologize in advance for any grammar mistakes, and if anything seems weird; I haven't written a story like this in a while, so I may be a little rusty.)