From the depths of the Indian Ocean, a horrific plague has arisen to devastate humankind. But it is merely a harbinger of the doom that is to follow. Aboard a cruise liner transformed into a makeshift hospital, Dr. Lisa Cummings and Monk Kokkalis, operatives of SIGMA Force, search for answers to the bizarre affliction. But there are others with far less altruistic intentions. In a savage and sudden coup, terrorists hijack the vessel, turning a mercy...

Eleven-year-old Gregor and his younger sister, Boots, return to the Underworld 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 underworld.

While studying a deadly plague in the Pacific, Dirk Pitt rescues a band of rich castaways who were deserted by their cruise ship and learns that the plague had been caused by a passenger's father, who uses ultrasound to mine diamonds.

Oswald de Lacey is growing up fast in his new position as Lord of Somershill Manor. The Black Death changed many things, and just as it took away his father and elder brothers, leaving Oswald to be recalled from the monastery where he expected to spend his life, so it has taken many of his villagers and servants. However, there is still the same amount of work to be done in the farms and fields, and the few people left to do it think they should be...

Thirteen-year-old Lizzie and her secret friend Noah, who is hiding in her house, plan to rescue Noah's father from the quarantined Chinatown, and save everyone they love from contracting the plague that is spreading in 1900 San Francisco.