Jane travels to a remote region of Scotland to spend the summer with her new friend Staffa, but her vacation takes a mysterious turn when Jane finds herself irresistibly drawn to a glowing box she has been warned not to touch and the magical world found inside the castle walls.
Eleven-year-old twins Oz and Lily are recruited by a talking cat to assist her and MI6 in foiling the dastardly plans of their great-great-uncle, a chocolatier who used magic to make a candy that bestows immortality.
Eleven-year-old Tom is shocked to learn that he is a demisprite, half fairy and half mortal, and that he, aided by three fairy godmothers, must save his father, who is hiding in the fairy Realm, while safeguarding his mortal mother.
On her way, reluctantly, to a boarding school in present-day England, Flora suddenly finds herself in 1935, the new girl at St. Winifred's, having been summoned via a magic spell by her new dormitory mates.