Frank Hartman, a virologist working for the government's top-secret biohazard agency, is the only man capable of stopping George Galen, a geneticist who has discovered how to "improve" humans by making them stronger, healthier, and compliant to his will.

The doctors call it Draco Incendia Trychophyton: a highly contagious spore that marks its hosts with beautiful black and gold marks across their bodies before causing them to burst into flames. There is no antidote. Harper Grayson was a nurse who treated hundreds of infected patients; now the telltale gold-flecked marks are on her skin. But Harper wants to live at least until the fetus she is carrying comes to term. Her husband Jakob becomes unhinged...

When a lethal virus vanishes from a Washington, D.C., lab, everyone blames Lucy's late father for the resulting epidemic, while Lucy struggles to overcome her drug addiction and to keep intact her family, which includes a pagan mother, a Christian-fundamentalist half-sister, her grandmother, and her lover.

"CALLING ALL CAHILLS! Announcing a 39 Clues Superspecial adventure -- the gang is back, and called to investigate one of their own: Sinead Starling."--

Change or die. These are the only options available on the planet Jeep. Centuries earlier, a deadly virus shattered the original colony, killing the men and forever altering the few surviving women. Now, generations after the colony has lost touch with the rest of humanity, a company arrives to exploit Jeep--and its forces find themselves fighting for their lives. Terrified of spreading the virus, the company abandons its employees, leaving them afraid...

"Franny K. Stein has had quite enough of her feelings getting in the way. So she physically removes them with the help of one of her machines. But it turns out that not having feelings can make things even worse, especially when you've accidentally released a virus that's turning everybody into toads. Good thing she has the help of her grandma, Granny Fran, and her Sense of Duty to help her shake the apathy"--

After finding her great-grandmother's potion diary, escaping the clutches of Emilia Thoth, saving her grandfather's memories AND become a Master Alchemist, surely it's time for Sam Kemi to have a good, long rest? And maybe, just maybe, a proper date with her boyfriend Zain? But now that Princess Evelyn is married to the sinister Prince Stefan and showing symptoms of the Gergon illness, it looks as though Sam's adventures are just beginning. The GOOD...

Bell has spent his whole life--all eleven years of it--on Mars. But he's still just a regular kid-he loves cats, any kind of cake, and is curious about the secrets the adults in the US colony are keeping. Like, why don't have contact with anyone on the other Mars colonies? Why are they so isolated? When a virus breaks out and the grown-ups all fall ill, Bell and the other children are the only ones who can help. It's up to Bell--a regular kid in a...

In the final days of World War II, the Japanese launch two submarines carrying a new strain of a deadly virus to the west coast of the United States, but years after the subs are lost at sea, someone plots to use their deadly cargo.

A new collection of short fiction features "Autopsy Room Four," "The Little Sisters of Eluria," and "The Road Virus Heads North."