Time of the Fourth Horseman Author:Chelsea Quinn Yarbro Twenty-first century medicine has wiped out all the deadly diseases. But suddenly, a large American city is gripped by epidemics of smallpox, diphhtheria, and other killers that were supposed to have disappeared forever. Only a few top government officials konw what's going on ... and for their sakes, the citizens of the threatened city must... more » never be allowed to find out.« less