Cathleen McGinley: This Endless Fight (Book 2)

Cathie did NOT sign up to be caught in the middle of a war between the first-years, and she DEFINITELY didn't sign up to be at risk of Petrification. Luckily she's got Neville and Daphne to help her when things get hard (or her Slytherin twin brother Cadence gets involved). An OC-in-the-Golden-Trio's-Year story, but much less cliche. Sequel to CM: Take a Stand, but can stand alone.