Pip and her twin brother, Tim, join forces again with Sebastian, the alchemist's son they awakened from a centuries-long slumber, to fight against an evil magician who learns people's deepest secrets in order to control their souls.

Eleven-year-old twins Jason and Julia, along with their friend Rick, search eighteenth-century Venice for Peter Dedalus, the elusive inventor who created Kilmore Cove's Mirror House.

While working at pleasant but mundane summer jobs in San Francisco, fifteen-year-old twins, Sophie and Josh, suddenly find themselves caught up in the deadly, centuries-old struggle between rival alchemists, Nicholas Flamel and John Dee, over the possession of an ancient and powerful book holding the secret formulas for alchemy and everlasting life.

Gannon and Wyatt join an expedition into the Great Bear Rainforest in search of the mythical spirit bear, but when members of the expedition go missing, the brothers bravely set out on a search-and-rescue mission. As they find themselves lost in a dangerous forest, they are guided by the wisdom of the First Nation people and uncover a sinister plot. The brothers must risk everything to save those who are missing and restore balance to the Great Bear....