(Paperback)

A huge rock hurdles through space on a collision course with Earth. You've got a little more than a day to get to safety. Where will you go Who will you help--and who will help you

(Paperback)

Most of the world's population is gone. You're one of the few lucky survivors, but can you trust the people who remain Or will you face the bleak future on your own

(Paperback)

You're a visitor to a park when a supervolcano erupts! Huge amounts of lava and ash threaten all life on the area. Will you stay to monitor the volcano or evacuate to safety