With Vastia under attack from Paksahara's zombie army, the familiars Aldwyn the cat, Skylar the blue jay, and Gilbert the tree frog must gather seven descendants from the most ancient and powerful animals in the queendom to bring Paksahara down.

The royal army is getting too much cake and not enough exercise, so when the king hears that dragons have been spotted, he decides that a bit of hunting is just the thing to get his soldiers fit again!

There are strange doings in Village Town, what with people turning into sheep, and pigs flying, and a talking rooster with teeth, tells nine-year-old knights Thud and Blunder that an Evil Wizard is responsible--but it turns out that the rooster has an agenda of his own.

"When a dragon catches a cold, setting off fires with its sneezes, a wizard comes to the rescue with a magic potion"--Provided by the publisher.

When the kingdom is hit by unnaturally wild weather, Ellabeth and the other the Unicorn Riders find that the cause is a lost weather sprite called Lumi who has become separated from the retired wizard Kai Liang--but before they can take him home and calm the weather they must gather his four elements and defeat the boy Gelsan who works for the evil Lord Valerian.

Diego is under the spell of the wizard Maldred who wants to control the Naga, an enormous dragon that lives deep within the Earth, and plans to use the boy to steal the two keys necessary for that purpose; the first key is guarded by Argent, the silver dragon, and Jean his dragon master, so Drake, Bo, Carlos, and their dragons travel to Gallia to try and stop the theft and break the spell on Diego.

The Dragon Masters are still reeling from the desertion of Rori and her fire dragon Vulcan, when Mina, a Dragon Master from the far north, arrives with a problem--King Lars needs a fire dragon to defeat the Ice Giant who has frozen his kingdom; and so the Dragon Masters set out to find Rori and convince her to help.