Jessie Parker looked forward to summer break, but a frightening last day of middle school began a series of chaotic events--ones that bring her to summer school. With the help of her friends, Jessie navigates summer school, where she faces dangers more often than she would like. Attending Mareschal Science Academy meant having secrets, including the school's real name. However, it doesn't take long for Jessie to uncover some of the school's mysteries. She soon realizes that this new world expands farther than she imagined and that her missing friend could be just as far away.