The secret of the sisters

This story is about a girl named Megan's life where she doesn't know about her other siblings (two boys, Brandon and Braden, who were twins of the age 14, and the oldest Abby was 16.) Megan's mom was remarried and not only kept this a secret from Megan but also the rest of the family! But Megan has a bigger problem to worry about since she has and abusive stepdad and careless mom! What will happen? Will Megan find out? Would that cause problems? You'll just have to read to find out! :)