A million years prior to the dawn of Homo sapiens, two immortal, shapeshifting aliens roam the Earth with little memory of their origin or their purpose. Later in the year 2019, an artifact is discovered off the coast of Samoa, buried deep beneath the ocean floor. The mysterious find brings two alien beings--the "changeling" and the "chameleon"--together again, to ponder the meaning of the object and its relationship to each other. Both immortals try to seek each other out and use the artifact to find their origins, one harbouring good intentions while the other is extremely hostile.

Marine biologist Russell Sutton, whose last major feat was raising the Titanic, takes charge of the excavation, hoping to make a fortune by capitalizing on the artifact's extraterrestrial origin. Sutton destiny will soon intertwine with the pair of shape-shifting aliens. One, known as the changeling, has been on Earth millions of years, assuming every identity from shark to human being, and slowly learning to love. The other, called the chameleon, has excelled in killing.

The Chameleon and the Changeling came from a group of stars humans call Messier 22. That is ten thousand light-years away from Earth. Here is a part of space where life can live. The planets are in unstable orbits. Some planets to close to stars to the point of it being burned. But there is one planet where life strives. There are creature who can adapt, it can call the burning planet Mercury home and also call the freezing planet Pluto home as well. The creature can evolve by force, changing itself to the environment around itself. It changes into whatever it need to be to survive and after millions of changes it becomes something that can never die. Being immortal, only looking around eating small creatures until it looked into the star and felt curiosity. Some of the creatures built ships to take them away, it would take them millions of years, but what is time to an immortal. Millions of years before humans are born a ship crashes into the Pacific Ocean, it goes far into the Ocean. It feels an instinct to hide, the creature inside comes out and changes into something for survival. It stays on the bottom of the ocean, until wanting to explore, it takes the from of a great white shark top of the food chain. It still remembers where it came from and why it came, but after so many centuries pass it forgets where, why, where its ship is, and what it is. It changes into the creature at the top of the food chain for survival, after being a great white shark, a killer whale, and then a naked swimmer.

Camouflage is a 2004 science fiction novel by Joe Haldeman. It won the Nebula Award for Best Novel in 2005,[1] and the James Tiptree, Jr. Award in 2004.

Joe Haldeman is an American science fiction author. Haldeman was born June 9, 1943 in Oklahoma City, Oklahoma. His family traveled and he lived in Puerto Rico, New Orleans, Washington, D.C., Bethesda, Maryland and Anchorage, Alaska as a child. Haldeman married Mary Gay Potter, known as "Gay", in 1965. He received a bachelor of science degree in astronomy from the University of Maryland in 1967. That same year he was drafted into the Army and served as a combat engineer in Vietnam. He was wounded in combat and his wartime experience was the inspiration for War Year, his first novel. In 1975, he received a MFA in Creative Writing from the University of Iowa Writer's Workshop. He currently resides in Gainesville, Florida and Cambridge, Massachusetts and teaches writing at MIT. In addition to being an award-winning writer, Haldeman is a painter.

Haldeman's most famous novel is The Forever War, inspired by his Vietnam experiences, which won both the Hugo and Nebula Awards. He later turned it into a series. Haldeman also wrote two of the earliest original novels based on the 1960s Star Trek TV series universe, Planet of Judgment (August 1977) and World Without End (February 1979). In October 2008 it was announced that Ridley Scott will direct a feature film based on The Forever War for Fox.

-- Reviewed by T.J. Powers