Science For Teens

Sauver le monde, Percy Jackson maîtrise. Mais décrocher son diplôme ? Pas si simple, surtout quand il lui faut trois lettres de recommandation des dieux. Il a déjà obtenu la première… il en reste encore deux. Pour la suivante, Percy, Annabeth et Grover doivent garder l'animal de compagnie d'Hécate pendant Halloween. Une mission tranquille – jusqu'à ce que Grover commette une bourde monumentale. Résultat : des créatures magiques lâchées dans New York et un manoir en ruines. Ils ont 24 heures pour réparer les dégâts… ou faire face à la colère d'Hécate.

Spensa made it out of the Nowhere, but what she saw in the space between the stars has changed her forever. She came face to face with the Delvers, and finally got answers to the questions she’s had about her own strange Cytonic gifts. The Superiority didn’t stop fighting for galactic dominance while she was gone, though. Spensa’s team, Skyward Flight, was able to hold Winzik off, and even collect allies to help with the cause, but it’s only a matter of time until humanity—and the rest of the galaxy—falls.

Our hero Chris Alan has been in some tight situations, to be sure. Hostile alien invasion, daring rescues of his friends, and trials by the insane kidnapper. But now he's marooned alone on the most hostile planet in the galaxy with no food, water, communication equipment, or spaceship. It couldn't look any bleaker. All he has to do is pull off another miracle with absolutely no resources or reasonable hope of survival. Just another day in the life of a teenage boy. Same old, same old, right?

Tsunami the SeaWing is overjoyed to be reunited with her fellow ocean-dwelling dragons. For the first time in her life, she actually fits in. But not everything is as perfect as it seems underwater. Tsunami and the other "dragonets of destiny" aren't any closer to ending the war for Pyrrhia...and someone in the SeaWing kingdom wants them dead before they can even try. Tsunami wants to stay with her fellow SeaWings, but can she keep her friends safe at the same time?

Moses and Troy Horne here. Your mental-toughness guides! We know exactly how you feel. If you are reading this, you probably have a young athlete who struggles with in-game stress and maybe even sports performance anxiety. That is why this version was mostly written by Moses. As of the time of the writing of this book, Moses Horne is a 15-year-old elite athlete who can talk directly about the triumphs and struggles of working toward being mentally tough. This is the only book that I know of with input from an actual young athlete.

Everything burns...The twisted magic that merged Andrew Rufus and Pecos Bill isn’t finished with them yet, not by a long shot. Andrew believed he was ready to be a part of this fight but nothing could have prepared him for this. The dark force that awakened Septimis still hungers for Pecos’s power, and if she can’t have it, the entire world will burn...

A Boston Globe-Horn Book Honor Book and ALA Notable and Best of the Year in Young Adult Fiction, Howl's Moving Castle is by acclaimed fantasy writer Diane Wynne Jones and was transformed into an Academy Award nominated animated motion picture by Hayao Miyazaki. On a rare venture out from her step-mother's hat shop, Sophie attracts the attention of a witch, who casts a terrible spell transforming the young girl into an old crone.

Some secrets are deadly. It's no secret that Sundew wants to destroy the HiveWings. It's her life's mission to exact revenge on the tribe that tried to wipe out the LeafWings and ripped every tree from the surface of Pantala. Every tree, that is, except the wild and dangerous Poison Jungle, where the surviving LeafWings have been hiding since the war. Hiding, plotting, and waiting for a dragon like Sundew, who is uniquely qualified to bring down the Hives.

This vampire messed with the wrong girl. I used to call myself a witch, shifter, and vampire slayer. Now I'm none of those things. I thought I was doing the right thing by killing Valkas, the original vampire and eye of the storm. But I played right into Matias Vayne's hands. His magic is back, but he's taken the rest of ours in his plot to gain power and "purify" the world. Innocent lives are on the line. I'll do anything to save them and restore our magic, but first I must face the most powerful man alive without any power of my own.

Peril has been loyal to Queen Scarlet, who used her fatal firescales to kill countless dragons in the SkyWing arena. Now Peril is loyal to Clay, the only dragonet who has ever been her friend. So when Scarlet threatens Jade Mountain Academy, Peril sets off to find her former queen, stop her, and save the day - no matter what it takes.

I’m Cora Marek, and I’ve royally screwed up. I failed my semester final and exposed the angels and demons to the human world. Luckily, the Alliance is giving me a chance to fix things. If I go on record stating it was all a hoax, I’ll be free to return to Harris Academy. But I’m not sure I’ve made the right choice. War is mounting outside the academy. The humans are afraid of us, and they want to take us down. If only we could show them they don’t have to be afraid. But Kellan - my partner and the guy I’m hopelessly pining for - insists exposing ourselves is a mistake.

A prophecy of murder. An elf hunted by dragons. One man who risks everything to save her. Nachal is a human that should not be having prophetic Dragon Dreams. But he does. Every night he dreams of an elf running through flames, trying in vain to outrun the Rebel Dragon Obsidian. Every night he sees her fall. Sees her eyes close. Feels her heart as it slows, and then stops. Every night, through the connection of the dream, he dies with her.

The new prophecy comes to a thrilling conclusion in the New York Times best-selling Wings of Fire series! A young NightWing may have had the first true prophecy in generations... Something is coming to shake the earth. Something is coming to scorch the ground. Jade Mountain will fall beneath thunder and ice. Unless the lost city of night can be found. Will the return of Darkstalker bring a horrible future to Pyrrhia? Or can five young dragons save the world - again?

In Seraphine Caelum’s world, gods exist. So do goddesses. Sera knows this because she is one of them. A secret long concealed by her parents, Sera is Lakshmi reborn, the human avatar of an immortal Indian goddess rumored to control all the planes of existence - Illysia (the Light Realm), Earth (the Mortal Realm), and Xibalba (the Dark Realm). Marked by the sigils of both heaven and hell, Sera’s avatar is meant to bring balance to the mortal world, but all she creates is chaos.

Conrad Edison is cursed. His foster parents die in horrible ways around his birthday, and he ends up back at the orphanage where he and the other children are treated like indentured servants. When a man with the ability to mind control animals inexplicably tries to kill Conrad, the harrowing scrape with death gives him a new perspective on life. Determined to elude his cursed fate, Conrad decides to escape the orphanage once and for all. The phone leads him to a magical place called Queens Gate, and for the first time in his life, he dares to hope for a better life.

A simple blink is all it takes to yank Pru from the car with her dad into a world of hurt. She awakens in 2305 to find herself pinned under what's left of CHRONOS headquarters, thanks to a recent terrorist attack. Their prime suspect? Her mother, Katherine Shaw. And everyone wants to know how Pru got her hands on a CHRONOS key.

Percy Jackson n'est pas un garçon comme les autres. Il découvre un jour le secret de sa différence : son père, n'est autre que Poséidon, le dieu de la mer dans la mythologie grecque. Placé pour sa protection dans un camp de vacances pour enfants "sangs mêlés" (mi-humains, mi-divins), Percy se voit injustement accusé d'avoir volé l'éclair de Zeus. Afin d'éviter une guerre fratricide entre les dieux de l'Olympe, il va devoir retrouver l'éclair et démasquer le vrai coupable... au péril de sa vie.

After years of searching for the next Avatar, the four nations have found peace with Avatar Yun - until Kyoshi, Yun’s friend and servant, demonstrates remarkable bending abilities herself. With the identity of the true Avatar at stake, Kyoshi and her fiery friend Rangi flee the Avatar mansion and find supporters in the daofei - outlaws living in the shadows of the Earth Kingdom. But while Kyoshi, Rangi, and their daofei friends face off against underworld rivals, those who seek to control the Avatar draw close.

For centuries there have been rumors of another continent on the dragons' planet - another land far across the ocean, populated by tribes of dragons very different from those we know. But there's never been any evidence, and most dragons dismissed the rumors as fairy tales. Until now. Because it turns out the stories are true. And the other tribes are coming.

Anthony is free! And he brought friends back to the Colony in the form of the monstrous bear Sarah, and the devious worm, Jim. But things aren't all going the way of our antrepid antventurer. Enemies abound, and the Colony has drawn to much attention. When the Legionem Abyssi, led by Commander Titus, come knocking on his door, will Anthony be able to repel the greatest army beneath the ground?