In their final adventure, the four Musketeers plot to replace King Louis XIV of France with the mysterious, masked prisoner in the Bastille believed to be Louis' falsely imprisoned twin brother and the true king.

Frank and Joe Hardy must retrieve a top-secret invention that a scientist had hidden in his study. Their investigations put them on the trail of jewel thieves and smugglers.

In a future world of false identities, government lies, and death threats, Luke feels drawn to the younger brother of the boy whose name Luke has taken.

Two brothers, having run away from the aunt who plans to adopt the younger one, are sought by a detective hired by their aunt, but they have found shelter with--and protection from--Venice's "Thief Lord."

As the Wanteds, Unwanteds, and Necessaries struggle to adjust to changes in their society, Mr. Today begins training fourteen-year-old Alex to replace him as Artime's leader one day while Alex's disgraced twin, Aaron, connives to take over Quill.

"The Hardy Boys are determined to find their friend when she vanishes into thin air."--

When Genie and his older brother spend their summer in the country with their grandparents, he learns a secret about his grandfather and what it means to be brave.

The magical world of Artimé is gone and the Unwanteds are looking to Alex Stowe for answers, but while his twin brother Aaron continues to build his army in Quill, a very dangerous common enemy is revealed.

Everything Aaron has worked so hard to build in Quill has crumbled. Fallen from the height of power and influence and left for dead in a foreign place, Aaron has lost everything, and now he must humbly beg for food from those who saved his life. In Artime, Alex chooses his people over his brother and abandons his search for Aaron, closing the door on that relationship forever. The Artimeans need his focus now more than ever as they face the terrifying...

Ascendant King Jaron believes that his kingdom, Carthya, is at peace, so he and his bethrothed, Imogen, are sailing home from a trade mission when their ship is attacked by Prozarians, and Jaron and several of his friends are taken prisoner; the Prozarian captain seems to believe he had something to do with his parents' deaths and they also know a great deal about Jaron's long-missing older brother, Darius, the rightful heir to Carthya--who may be...