"Mason and Ty were once the very best of friends, like two nerdy sides of the same coin . . . until seventh grade, when Ava Petrakis came along. Now Mason can trace everything bad in his life to that terrible fight they had over the new girl. The one thing he'd give anything for is a do-over. But that can't happen in real life--can it? As a science kid, Mason knows do-overs are impossible, so he can't believe it when he wakes up from a freak accident...

Josie Byrne's life is spiraling out of control. Her parents are divorcing, her boyfriend Nick has grown distant, and her physics teacher has it in for her. When she's betrayed by the two people she trusts most, Josie thinks things can't get worse. Until she starts having dreams about a girl named Jo. Every night at the same time -- 3:59 a.m. Jo's life is everything Josie wants: she's popular, her parents are happily married, and Nick adores her. It...

As time plays tricks and night falls without warning, Johnny, Dizzy, and Charlie, who are lost in the woods, must elude the danger that lurks in shadows and work together to find a way out. Includes note about the science behind the story.

When Jonah and Katherine travel to early 1900s Switzerland and Serbia to return Albert Einstein's daughter, Lieserl, to history, her mother Mileva grasps entirely too much about time travel and has no intention of letting her daughter go.

Artemis has committed his entire fortune to a project he believes will save the planet and its inhabitants, both human and fairy. Can it be true? Has goodness taken hold of the world's greatest teenage criminal mastermind? Captain Holly Short is unconvinced, and discovers that Artemis is suffering from Atlantis Complex, a psychosis common among guilt-ridden fairies - not humans - and most likely triggered by Artemis's dabbling with fairy magic. Symptoms...

Australian teenagers Matt and Rochelle overcome their misgivings to help the other Named confront the forces of evil and chaos.

As Omri, his father, and other members of his family learn more about the cupboard in his room, together and separately they are caught up in several dangerous adventures that reveal more about its powers.

The unflappable Mister Invincible uses his ability to break the rules of comic books to protect his hometown.

Whisked through a portal to The Outskirts, an in-between world, sixth-grader Cole must rescue his friends and find his way back home--before his existence is forgotten.