Zodiac Academy 3: The Reckoning - Caroline Peckham, Susanne Valenti

The answer to your question will be revealed on the Lunar Eclipse. But when finding the truth, don't let the shadows take you. The week of The Reckoning has begun. And senior students have been tasked with making the freshmen's lives pure hell as we prepare to take the assessment that will decide whether we stay at Zodiac Academy or lose our places here forever. With the Lunar Eclipse on the horizon, my sister and i have more to worry about than just passing our exams. A dark plot is unfolding and the shadows are drawing closer. It looks like our enemies could be more powerful than we ever realised.