When fifteen-year-old Will is rejected by battleschool, he becomes the reluctant apprentice to the mysterious Ranger Halt, and winds up protecting the kingdom from danger.

"After starring in three adventures, the inimitable quartet of Reynie, Sticky, Kate, and Constance haven't had a mission together in some time. But with the arrival of a new Society member--and a new threat--they must reunite to face dilemmas more dangerous than ever before, including the return of the villainous Mr. Curtain and his Ten Men and a formidable enemy with a mystifying ability to track their every move."--

In a kingdom besieged by hunger, sickness, and war, Princess Sophia must do whatever it takes to protect the people she loves, even if it means she has to confront the beasts she thought only lived in her books.

"As humans and godspawn reel in the aftermath of the citadel's near fall, a new foe shatters their fragile hopes, and the mysteries of the Mesarthim are resurrected"--

Thirteen-year-old Skandar Smith has always wanted to be a Unicorn rider, but when the mysterious Weaver steals the most powerful unicorn in the world, Skandar must face sky battles, ancient secrets, and bloodthirsty unicorns in order to save his island.

"After fleeing Astrea and regaining her freedom, Theo searches for new allies to help her reclaim her throne, although that comes at a steep price. And with her enemies closer than she thinks, Theo's fight to win back Astrea may prove not only impossible, but deadly"--

When her behavior escalates out of control, fourteen-year-old Wren is taken away to a wilderness therapy camp where she is forced to develop new skills, including the courage to ask for help.

Leafstar struggles to maintain control of her Clan as she figures out how Skyclan can survive in the gorge.

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...

Andy and Terry are once again inviting readers to come hang out with them in their astonishing 39-story treehouse (it used to be 13 stories, then 26 stories, but they keep expanding). And this year they will have even more time to jump on the world's highest trampoline, toast marshmallows in an active volcano, swim in the chocolate waterfall, pet baby dinosaurs, and go head-to-trunk with the Trunkinator, since Terry has created the greatest invention...