The Seven Sleepers have seen their share of strange animals in Nuworld...They've flown on giant eagles. They've ridden friendly sea monsters. They've even been on the back of centaurs.But Josh Adams and his friends have never seen anything like the animals in Dr. Korbo's country. Where did squirrels the size of elephants come from, anyway? Or bats big enough to carry off a man? Is the evil doctor somehow responsible? He seems to be.As Reb says, Goel knows how to put his people in the right place at the right time. So when the Sleepers hear what Dr. Korbo plans to do next, they decide to stop him. Follow Josh and company into danger and see what happens.