Description: Emma McCallan, a physician working for NASA, is thrilled to have been chosen to live on space station Alpha for three months conducting a series of classified microgravity experiments upon single-celled organisms that were apparently taken from the depths of the Pacific Ocean. What Emma does not yet know is that this project has been secretly sponsored by the Defense Department, and their motives go decidedly beyond simple scientific discovery. When things begin to go wrong, Emma and Gravity's listeners are swept up into a pulse-pounding tale of evil government corruption and a terrifying new disease that only Emma can kill -- unless it kills her first.

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