Viruses are the undead of the living world, the zombies of deep time. Nobody knows the origin of viruses – how they came into existence or when they appeared in the history of life on earth.

It was as if his life’s work had slipped away unfinished before he had even been born. All he could find, at best, were a few remnants of a lost world.

The hand is a symbol of humanity, part of what makes us human – the hand that carved the Parthenon, painted the hands of God and Adam on the ceiling of the Sistine Chapel, and wrote King Lear was the only hand that had known smallpox. That same hand had now given the disease to a monkey.

A giant virus named the Mamavirus, which was discovered infecting amoebae that live in a water-cooling tower in Paris, gets infected by a small virus called the Sputnik. A Mamavirus particle with Sputnik disease is one sick virus – deformed and unable to replicate very well.

The rain forest has its own defenses. The earth’s immune system, so to speak, has recognized the presence of the human species and is starting to kick in. The earth is attempting to rid itself of an infection by the human parasite. Perhaps AIDS is the first step in a natural process of clearance.

He calls it speleogenesis by elephants – the creation of a cave by elephants.

Doctors generally consider smallpox to be the worst human disease. It is thought to have killed more people than any other infectious pathogen, including the Black Death of the Middle Ages. Epidemiologists think that smallpox killed roughly one billion people during its last hundred years of activity onearth.

The emergence of AIDS, Ebola, and any number of other rain-forest agents appears to be a natural consequence of the ruin of the tropical biosphere.

The coast redwood tree is an evergreen conifer and a member of the cypress family. It’s scientific name is Sequoia sempervirens. No one knows exactly when or where the redwood entered the history of life on earth, though it is an ancient kind of tree, and has come down to our world as an inheritance out of deep time.

Lake of the Woods is asleep for the winter, but it is dreaming. Marie feels that she can hear the dreams of the lake running through the ice, like thoughts in a language we don’t know.