A Test of Knowledge - Little Witches, #6

The Fifth Grade Test has arrived... Lila Teafeather, age 10, has been waiting to learn 'bigger magic' ever since her cousin Mira started middle school. Sixth grade starts that journey, assuming she can pass the Fifth Grade Test, that is. Lila and her friends intend to spend their week-long Spring Break practicing their magic skills, but when their familiars begin acting strangely, and their teacher sends riddles through their spellgendas, it's up to her and her friends to figure out what is going on.
Will they be able to solve this puzzle before their big test? Will they be stuck in fifth grade for another year?