Medicine and mayhem from the best-selling co-author of Crisis on Doona. An epidemic is spreading from colony to colony in the vast reaches of space. Dr. Shona Taylor, with her team of four-legged assistants - including a dog with an immune system that can synthesize vaccines - sets out to find a way to stem the killer disease.

Dr. Shona Taylor, her growing family, and her highly trained menagerie of useful animals land on a planet only to discover a colony of humans and alien ottles plagued by a strange disease that causes rapid aging. Dr. Taylor must discover the cause in order to save the population - as well as her family and friends - before it’s too late

In Taylor's Ark and Medicine Show, Shona Taylor fought death and disease - with a menagerie of very special assistants. Now, in an all-new novel, Dr. Taylor takes on a new assignment, and discovers a chilling reality behind a picture-perfect planet.