In a dark future, when North America has split into two warring nations, fifteen-year-olds Day, a famous criminal, and prodigy June, the brilliant soldier hired to capture him, discover that they have a common enemy.

Eleven-year-old Gregor and his younger sister, Boots, return to the Underland beneath New York City to find the cure for a terrible plague that threatens the life of their mother, as well as the lives of the people, bats, and rats who populate the Underland.

From the depths of the Indian Ocean, a horrific plague has arisen to devastate humankind-unknown, unstoppable... and merely a harbinger of the doom that is to follow. Operatives of the shadowy covert organization Sigma Force, Dr. Lisa Cummings and Monk Kokkalis search for answers to the bizarre affliction aboard a cruise liner transformed into a makeshift hospital. But a sudden and savage attack by terrorist hijackers turns the mercy ship into a floating...

When a mysterious plague threatens to wipe out the inhabitants of Eelong, fifteen-year-old Bobby Pendragon must decide whether to risk getting the antidote and, thereby, endangering himself, his friends, and the future of every other being in Halla.

Two years after vanishing into the Sudanese desert, the leader of a British archeological expedition, Professor Harold McCabe, comes stumbling out of the sands, frantic and delirious, but he dies before he can tell his story. The mystery deepens when an autopsy uncovers a bizarre corruption: someone had begun to mummify the professor's body--while he was still alive. His strange remains are returned to London for further study, when alarming news...

"When authorities in Alaska receive a disturbing call from a teenage girl, their investigation leads them to discover an entire family of researchers dead. Joe Rush is called to help examine the bodies. On the surface, it looks like a brutal murder/suicide. But the situation is nowhere near that simple--nor is it over. Upon closer investigation, Rush discovers the terrifying truth. The research team has fallen victim to something that seems impossible...

14th century Crusaders returns to a homeland devastated by the Black Plague. A beleaguered church, deeming sorcery the culprit of the plague, commands two knights to transport an accused witch to a remote abbey, where monks will perform a ritual in hopes of ending the pestilence.

As the plague decimates London in 1665 and an assassin threatens the apothecary's life, apprentice Christopher Rowe and his faithful friend Tom, following a trail of puzzles, riddles, and secrets, risk their lives to untangle the heart of a dark conspiracy.

"In a world where people are implanted with technology to recode their DNA, gene-hacking genius Cat must decrypt her late father's message concealing a vaccine to a horrifying plague"--

"The planet Kerenza is attacked, and Kady and Ezra find themselves on a space fleet fleeing the enemy, while their ship's artificial intelligence system and a deadly plague may be the end of them all"--