Miss Hegotty's Secret Society of Witches has a lot of work to do. The Department of Isle-Spark Regulation is up to no good. For Princess Victoria at the palace, this means possibly losing her powers for ever. And for Eglantine Bury, her magical home can't stop sneezing, causing total chaos with each "ACHOO!" As if that wasn't enough to worry about, Eglantine's house isn't the only magical being falling mysteriously ill. With dragons and gargoyles getting sicker and sicker, the witches will have to use time travel, disguise spells and genie wishes to uncover the truth...before it's too late.