When Kendra and Seth go to stay at their grandparents' estate, they discover that it is a sanctuary for magical creatures and that a battle between good and evil is looming.

Very strange things are afoot at Fablehaven. Someone or something has released a plague that transforms beings of light into creatures of darkness. Seth discovers the problem early, but as the infectious disease spreads, it becomes clear that the preserve cannot hold out for long. In dire need of help, the Sorensons question where to turn. The Sphinx has always given sound advice -- but is he a traitor? Inside the Quiet Box, Vanessa might have information that could lead to a cure -- but can she be trusted? Meanwhile, Kendra and members of the Knights of the Dawn must journey to a distant preserve and retrieve another hidden artifact. Will the Society of the Evening Star recover it first? Will the plague eclipse all light at Fablehaven?

As the evil Celebrant, the Dragon King, conquers more and more dragon sanctuaries, Kendra must raise an army of friends and allies on her own to fight him because her brother Seth and Bracken are missing.

Kendra and Seth have to help their grandfather protect Fablehaven and all of its magic from the Society of the Evening Star.

When Kendra and Seth go to stay at their grandparents' estate, they discover that it is a sanctuary for magical creatures and that a battle between good and evil is looming.

Adapted from the original bestselling novel, The Christmas Sweater: The story of a young boy who finds the true meaning of Christmas.

After a humiliating defeat at the hands of Kendra and Seth, Celebrant, King of Dragons, prepares to unleash his fury and take control of his native preserve. Armed with information from a new ally--Ronodin, the dark unicorn--Celebrant seeks a legendary