Strange Family Bonding

From the author who brought you The Journal of Leila Kinders comes a new story about a group of siblings with a strange secret: they all have powers.

Well that is, except for one: Marina Weatherby has grown up without powers, and has therefore been the outsider of the family. While her siblings go out and bond saving the world, Marina is stuck at home, alone with her comatose father, that is until she finds out she has a rare ability- an elementanlist, and she's actually one of the four missing pieces. Her powers come with a catch, however- she can't tell anyone she has them

So as Marina tries to keep her powers a secret, she goes and search for the other three pieces to the puzzle, all while avoiding her siblings who keep trying to bond with her.

Superhero esque type of thing.