Eight-year-old Jack and his younger sister Annie use the magic tree house to travel back to the Middle Ages, where they explore a castle and are helped by a mysterious knight.

"Max and a group of friends dubbed the Midknights go on a quest to rescue the Kingdom of Byjovia from the mean King Gastley!"--

"The girl knows she has a destiny before she even knows her name. She grows up in the wild, in a cave with her mother, but visions of a faraway lake come to her on the spring breeze, and when she hears a traveler speak of Artos, king of Caer Leon, she knows that her future lies at his court. And so, brimming with magic and eager to test her strength, she breaks her covenant with her mother and, with a broken hunting spear and mended armour, rides...

Princess Guinevere has come to Camelot to wed a stranger: the charismatic King Arthur. With magic clawing at the kingdom's borders, the great wizard Merlin conjured a solution-- send in Guinevere to be Arthur's wife... and his protector from those who want to see the young king's idyllic city fail. The catch? Guinevere's real name-- and her true identity-- is a secret. She is a changeling, a girl who has given up everything to protect Camelot. Arthur's...

With no knightly experience but plenty of pluck and an impressive vocabulary, a twelve-year-old peasant, hoping to improve his station in life, volunteers to help a cowardly prince and his not very powerful wizard rescue a princess from an evil, foul-smelling monster.

What begins as a literary burlesque of British chivalry and culture grows into a disturbing satire of late 19th century technology and social thought. The story of Hank Morgan, a nineteenth-century American who is accidentally returned to sixth-century England, is a powerful analysis of such issues as monarchy versus democracy and free will versus determinism, but it is also one of Twain's finest comic novels.

"The ultimate cure that could heal any disease? Crazy.That's exactly what research scientist Marian Creighton has always believed about her father's quest, even if it does stem from a desire to save her sister Ellen from the genetic disease that stole their mother from them. But when her father falls into a coma after drinking a vial of holy water believed to contain traces of residue from the Tree of Life, Marian must question all of her assumptions....

Chasing the Skandian slave-traders who kidnapped Will and Evanlyn, Ranger Halt and warrior student Horace find themselves in the frozen northern islands, where they battle a ruthless black-clad knight as they attempt to rescue their friends.

Trapped in a rigid hierarchy where girls learn magic and boys train as knights, twelve-year-old nonbinary Callie, who dreams of becoming a knight, and their new friends find themselves embedded in an ancient war, but in order to defeat the threats outside the kingdom they must first defeat the bigotry within.

With the realm at peace and few dragons about, the Knights of the Round Table are bored, so Merlin sends them to face the most terrible lizards of all--dinosaurs.