The Andromeda Evolution

The Andromeda Evolution is a 2019 novel written by Daniel H. Wilson. It is a sequel to Michael Crichton's The Andromeda Strain, published 50 years prior in 1969. It is the nineteenth novel under Crichton's name, and the fourth novel published after Crichton's death.

Plot
Fifty years after the events of The Andromeda Strain an anomaly is discovered in the Amazon rainforest. A team made up of Nidhi Vedala, Harold Odhiambo, Peng Wu, Eduardo Brink, and Sophie Kline are selected to investigate the anomaly. James Stone, the son of original Andromeda incident scientist Jeremy Stone, is chosen as a last-minute replacement on the team by overseer General Stern based on a hunch. The team is dispatched to the Amazon, minus Sophie Kline, who is an American astronaut residing at the International Space Station.

The group's travel towards the anomaly is met with disaster when local tribesmen attack during the night in a strangely violent manner. Brink and the native guides leading the group are slaughtered. Peng finds Brink's body the following day and discovers a vial of Omega poison in his bag. She keeps the poison, as she's unable to trust the others due to a pre-existing anxiety disorder. Upon investigating the tribesmen's bodies, the group discovers that they were infected with a new strain of Andromeda: AS-3. Odhiambo finds that the tribesmen were accompanied by an uninfected boy, Tupa, who bonds with Stone.

The group contacts Kline in an attempt to pass information along to Stern, as the jungle environment makes it difficult to contact anyone other than the space station. Led to believe that Brink is still alive, Kline gives them a coded message to pass along telling him to use the Omega poison on the scientists. Upon reaching the anomaly, they find that it is growing and has formed a building. They enter it and discover the bodies of several workers, as well as a control hatch, at which point Kline contacts them and tells them that they should not have come. Peng has a panic attack as the floor begins to become quicksand. She flees rather than enter the hatch with the others and becomes infected. With her dying breath she reveals that Andromeda is on every planetary body in the solar system. It is alien machinery, looking for other life forms. It is then revealed that Kline had been working against the Andromeda and built the anomaly to this end. Vedala and Stone attempt to stop Kline's plan.

Main characters

 * General R. Stern: A four-star US general in command of NORAD (Colorado), leader of the Amazon mission.
 * Dr. James Stone: Robotics and artificial intelligence expert. The son of Dr. Jeremy Stone, and also a Piedmont, Arizona AS-1 survivor.
 * Dr. Nidhi Vedala: A nanotechnology expert who developed a spray to prevent infection by Andromeda AS-3 particles.
 * Dr. Sophie Kline: An ISS astronaut and expert in robotics and nanotechnology, who suffers from ALS.
 * Peng Wu: A soldier, doctor, pathologist and former taikonaut who suffers from an anxiety/panic disorder.
 * Harold Odhiambo: A scientist well-studied in anthropology, biology, and geology.
 * Tupa: A 10-year-old boy, the sole survivor of an Amazon tribe wiped out by the AS-3.

Development
Development of the book began when Crichton's widow, Sherri, chose to approach a writer to pen a sequel to The Andromeda Strain. She cited her reason as "that I don’t want Michael’s classic body of work to be forgotten.” Writer Daniel H. Wilson was approached to write the sequel and Sherri retained final approval of the book before publication. Wilson conducted research with NASA at the Johnson Space Center and explored a mockup space station and spoke with Robonaut 2 scientists. He has stated that he wanted to both acknowledge the original book and also take into account the advances made in science and space exploration since the 1970s.

Reception
The Washington Post noted that "Predictable as this group is, their adventure is at least as exciting as Crichton’s original story — and considerably more active. The jungle provides an ominous setting for some spooky scenes. And the episodes set in outer space are particularly thrilling." USA Today also reviewed the book, writing "In the end, The Andromeda Evolution explodes with an unexpected, gripping, cinematic finale, ready-made. Crichton and techno-thriller fans will be entertained, if not awed."