Book picks similar to
Mammoth Trouble by D. Robert Pease


sci-fi
middle-grade
young-adult
science-fiction

Omega City


Diana Peterfreund - 2015
    His conspiracy theories about the lost technology of Cold War–era rocket scientist Dr. Aloysius Underberg may have cost him his job and forced them to move to the middle of nowhere, but Gillian knows he's right and plans to prove it.When she discovers a missing page from Dr. Underberg's diary in her father's mess of an office, she thinks she's found a big piece of the puzzle—a space-themed riddle promising to lead to Dr. Underberg's greatest invention. Enlisting the help of her skeptical younger brother, Eric, her best friend, Savannah, and Howard, their NASA-obsessed schoolmate, Gillian sets off on a journey into the ruins of Omega City, a vast doomsday bunker deep inside the earth,.But they aren't alone inside its dark and flooded halls. For while Gillian wants to save her dad's reputation by bringing Dr. Underberg's secrets to light, there are others who will stop at nothing to make sure they stay buried . . . forever.

The Box and the Dragonfly


Ted Sanders - 2015
    Miseries. Mysteries . . .From the moment Horace F. Andrews sees the sign from the bus—a sign with his own name on it—everything changes. The sighting leads him underground, to the House of Answers, a hidden warehouse full of mysterious objects. But there he finds only questions. What is this curious place? Who are the strange, secretive people who entrust him with a rare and immensely powerful gift? And what is he to do with it?Horace quickly discovers that nothing is ordinary anymore. From the sinister man lurking around every corner to the gradual mastery of his newfound abilities to his encounters with Chloe—a girl who has an astonishing talent of her own—Horace follows a path that puts him in the middle of a centuries-old conflict.Horace’s journey leads him and Chloe deep into a place where every decision they make could have disastrous consequences. Most important, it links Horace to the Box of Promises and a future he never saw coming.With an action-packed blend of science fiction and fantasy, Ted Sanders creates a world where everything is more than it seems and where friendship and loyalty have the greatest power of all.