Brandon Mull

As a dark force engulfs the land, the fate of Erdas has fallen on the shoulders of four young strangers who each have forged a rare bond with their spirit beasts -- a bond that gives great powers to all of them.

Whisked through a portal to The Outskirts, an in-between world, sixth-grader Cole must rescue his friends and find his way back home--before his existence is forgotten.

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. To thwart the Sphinx's designs and find a safe home for the five artifacts, Kendra, Seth, and the Knights of the Dawn must venture far beyond the walls of Fablehaven in...

"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...

Cole and his friends finally reach the fourth of the five kingdoms, Necronum, land of the dead, where they confront unexpected dangers and meet new allies.

Trapped in a world where magic is powerful and dreams are real, Cole and his friends are pushed to the limit as they make one final attempt to restore magic to the Outskirts and find their way back home. Trapped in a world where magic is powerful and dreams are real, Cole Randolph can barely remember what life was like back in Arizona. Now he and his friends are pushed to the limit as they make one final attempt to restore magic to the Outskirts....

"The magical world teeters on the brink of collapse. The Dragon King, Celebrant, has united the dragons into a vengeful army, and only a final artifact stands in the way of them unleashing their fury against humankind. With established allegiances shifting under the strain, Seth and Kendra find themselves in desperate need of new allies. Seth must face his most dangerous quest-the fulfillment of his pledge to the Singing Sisters. With only Calvin...

As the war with the dragons intensifies, all eyes are turning to Titan Valley for help. A dragon sanctuary unlike any of the others, this one is home to enslaved dragons ruled by the powerful Giant Queen, one of the five monarchs of the magical world. In addition, it houses the arena for the Titan Games, a series of gladiator-style battles presided over by none other than Humbuggle, the demon who stole Seth's memories! Seth wants to regain his memories....

Nate and his friends think the new Arcadeland, where tickets can earn jets, tanks, subs, and race cars, is totally cool, until they learn that the arcade owner is hiding a secret.

After Jason succeeds in finding a way back to Lyrian, he's immediately in more danger than ever. Meanwhile, Rachel and the others have made their own progress--as well as discovered new enemies. As the group ultimately rejoins, they strive to convince their most needed ally to join the war and form a rebellion strong enough to triumph against the emperor.