Princess Tania thinks she has finally found a way to unite the world of Faerie with the modern world, but her beloved Immortal Realm is threatened when a grave illness takes hold of the kingdom and she must find a way to save it.

Lauren and Billy set out on a journey to find Bonnie, hoping Lauren's gifted hearing can track down Bonnie's never-ending song. At the same time, Walter and Ashley search for clues to cure a mysterious disease that threatens to kill the original anthrozils, including Jared, who was once the great Clefspeare.

Having been presumed dead, Jakkin and Akki finally return to Austar IV with newfound skills, and the knowledge that what they have learned could either transform their planet or destroy it.

Orphaned as a child, Princess Wilhelmina together with her best friend Melanie return to the Indigo Kingdom to fight back and reclaim Wil's throne. But Wil has a secret -- one that could change everything.

When Cordellan debt forces the Winterians to dig their mines for payment, they unearth something powerful and possibly dangerous: Primoria's lost chasm of magic. Theron sees this find as an opportunity -- with this much magic, the world can finally stand against threats like Angra. But Meira fears the danger the chasm poses -- the last time the world had access to so much magic, it spawned the Decay.

"Magnus and friends help the god of thunder find his missing weapon before all Muspellheim breaks loose"-- "Thor's hammer is missing again. The thunder god has a disturbing habit of misplacing his weapon--the mightiest force in the Nine Worlds. But this time the hammer isn't just lost, it has fallen into enemy hands. If Magnus Chase and his friends can't retrieve the hammer quickly, the mortal worlds will be defenseless against an onslaught of giants....

Young Edmund, innkeeper's son and would-be wizard, calls on his friends Katherine and Tom to help stop the Skeletheerie, otherworldly beings said to be unstoppable in battle.

A veterinary student finds herself part of a special rotation treating mythical and fantastical animals.