When the Chamber of Secrets is opened again at the Hogwarts School for Witchcraft and Wizardry, second-year student Harry Potter finds himself in danger from a dark power that has once more been released on the school.

The magic tree house is back with a message from Morgan le Fay telling Jack and Annie to seek out "The Gray Ghost" and listen to her story, and immediately they are whisked away to Nepal where they meet Tenzin, a climber who has recently lost his family, and who takes them up the mountain to meet a snow leopard and renew himself.

"Oona, Jax Amboy, and An Tzu must light the beacon on Moon Yatta and stop the evil force that threatens to rule the 5 worlds"--

When supernatural things start happening in the house timid Andres and his parents just moved into, next-door-neighbor Desmond Cole, eight, comes to the rescue.

Eleven-year-old Alice Mistlethwaite persuades her boarding school friends, Jesse and Fergus, to set out on an off-the-grid adventure in which they face storms, illness, injury, and international jewel thieves.

Mr. Quisling is definitely up to something mysterious, and Emily and James are on high alert. First, there's the coded note he drops at a book event. Then Emily and James uncover a trail of encrypted messages in books by Mark Twain hidden through Book Scavenger. What is most suspicious is that each hidden book triggers an arson.

For eleven year-old Hugo Ballard, flying on the Hindenburg is a dream come true. Hugo, his parents, and his four-year-old sister Gertie, are making the thrilling four thousand mile journey across the Atlantic in a zeppelin as big as the Titanic. But as the zeppelin gets ready to land, a blast rocks the Hindenburg and fire consumes the ship. The entire disaster lasts a mere thirty-two seconds, but in those few seconds, Hugo finds himself separated...

"Like a bolt from the blue, Jack's little sister Maddy is gone--carried into another realm by an ogre. When Jack and Lilly follow Maddy's captor through the portal, they are ready for anything . . . except what they find waiting for them in the floating crossroads between worlds. Even the power of their magic plants may not be enough to get them back to earth alive. Alone and injured, Jack and Lilly must each face their own monsters--as well as giants...

"When a group of orphans discover they have a common connection, plucky heroine Phoebe leads them in a daring escape from their orphanage to an uninhabited moon. But their idyllic paradise is shattered when the powerful corporate boss who caused the deaths of their parents sends a relentless henchman to track them down. Now, with nowhere left to turn and tired of being on the run, these resourceful kids decide there's only one thing left to do: Fight...

"Six dangerous outcasts. One impossible heist. Kaz's crew is the only thing that might stand between the world and destruction--if they don't kill each other first"-- Ketterdam: a bustling hub of international trade where anything can be had for the right price--and no one knows that better than criminal prodigy Kaz Brekker. Kaz is offered a chance at a deadly heist that could make him rich beyond his wildest dreams. But he can't pull it off alone:...