Almost Twins - The South Louisiana High Series, #3

Gia and Andy Moretti are sisters who attend South Louisiana High School, and though they look alike, the two are as different as Sprite and Coke. While Gia has a penchant for following rules and striving for perfection, Andy is just hoping no one's noticed that she's skipped school for the fourth time in a month. Their differences lead to lots of fights, and when Gia appears to replace her sister with a new friend named Via, Andy is beyond jealous.
But, as Andy begins to turn her attention to her budding career as a filmmaker/private investigator, she stumbles upon a massive secret that affects everyone in their small town. Join Gia, Andy, and Via as they solve the mysteries of sisterhood, friendship, and invisible superheroes who are determined not to be unmasked. Their adventures are recorded in Book 3 of the South Louisiana High Series.