The war against dragons intensifies. Will Kendra and Seth find the help they desperately need from the Giant Queen? This fourth book in a five-book series leaves the underwater dragon preserve of Crescent Lagoon for a gladiator-style arena at Titan Valley - the magical realm of towering giants and enslaved dragons. Our two young heroes have never felt so small or faced a challenge so...giant!

For centuries, mystical creatures of all description were gathered to a hidden refuge called Fablehaven to prevent their extinction. The sanctuary survives today as one of the last strongholds of true magic in a cynical world. Enchanting? Absolutely. Exciting? You bet. Safe? Well, actually, quite the opposite... Kendra and her brother Seth have no idea their grandfather is the current caretaker of Fablehaven.

The dragons have formally declared war on anyone who stands in their way of freedom and unrestrained power. With every dragon sanctuary that falls, Celebrant, the Dragon King, comes closer to his goal of world domination. No single mortal or creature can stop Celebrant. Kendra will need to raise an army of friends and allies to accomplish her mission to thwart Celebrant because her brother Seth and her closest ally, Bracken, are missing.

In the long-awaited sequel to Fablehaven, the dragons who have been kept at the dragon sanctuaries no longer consider them safe havens but prisons, and they want their freedom. The dragons are no longer our allies....

Since ancient times, the great demon prison Zzyzx has protected the world from the most dangerous servants of darkness, including Gorgrog, the Demon King. After centuries of plotting, the Sphinx is on the verge of recovering the five artifacts necessary to open the legendary prison. Facing the potential of a world-ending calamity, all friends of light must unite in a final effort to thwart the Sphinx's designs and find a safe home for the five artifacts.