The Heir of Mistmantle (The Mistmantle Chronicles)

A baby girl has just been born...
...to King Crispin and Queen Cedar. She is Catkin, the heir to the throne of Mistmantle. Everyone on the island gathers for the joyful celebration of the Naming Ceremony. But that night the princess mysteriously disappears.
All clues point to her caretaker, Linty, a mother squirrel who had gone mad with grief because of a tragedy that occurred during Husk's evil reign. The islanders fall into crisis as a mysterious illness takes hold and begins to spread. Tensions mount as strange sightings are reported—could Husk still be alive?
In this next thrilling entry of the Mistmantle Chronicles, the islanders will have to overcome their greatest fears to save Princess Catkin and bring stability back to their beloved home.