Eight-year-old Drake is snatched up by the King's soldiers and taken to the castle where he is told by the wizard Griffith that he has been chosen to be a Dragon Master like Ana, Rori, and Bo--and his first task will be to discover whether his dragon, Worm, has any special powers.

"Where did the tree house come from? Before Jack and Annie can find out, the mysterious tree house whisks them to the prehistoric past. Now they have to figure out how to get home. Can they do it before dark ... or will they become a dinosaur's dinner?" -- Amazon.com

The dark magic the dragons encountered in their first adventure has made Ana's sun dragon, Kepri, sick and Drake's earth dragon, Worm, teleports the himself, Kepri, and the four young dragon masters far away from the castle in search of a cure--but the threat of the dark magic still remains.

Jack and Annie travel in their Magic Tree House back to a Hawaiian island of long ago where they make friends, learn how to surf, and encounter a tsunami.

Petra, the newest dragon master, is scared to death of the Hydra dragon she is supposed to bond with--but when the Hydra accidentally poisons the King, and then her fellow dragon master, Drake, she must find a way to connect with her dragon, because only the Hydra's song can cure them.

"For the first time, an Empress Redemptor sits on Aritsar's throne. To appease the sinister spirits of the dead, Tarisai must now anoint a council of her own, coming into her full power as a Raybearer. She must then descend into the Underworld, a sacrifice to end all future atrocities. Tarisai is determined to survive. Or at least, that's what she tells her increasingly distant circle of friends. Months into her shaky reign as empress, child spirits...

The Dragon Masters discover that a Shadow Dragon named Chaya and his Dragon Master Aruna are responsible for a huge shadow stretching across the sky, but how do they have so much power and why are other wizards around the world losing theirs?

When Princess Jenna is pursued by a dark wizard, it is the apprentice, Septimus Heap, who must save her while enduring such terrors as a night in the Forest with hungry wolverines and carnivorous trees.

Shy, awkward Bastian is amazed to discover that he has become a character in the mysterious book he is reading and that he has an important mission to fulfill.

After learning that she is the Princess, Jenna is whisked from her home and carried toward safety by the Extraordinary Wizard, those she always believed were her father and brother, and a young guard known only as Boy 412--pursued by agents of those who killed her mother ten years earlier.