The Aliens Should Have Ordered an MRI

Earth was invaded. Radiology took it personally.

Cass Morgan has spent twenty-five years working in diagnostic imaging. She can calm a frightened patient, troubleshoot an uncooperative scanner, prioritize a packed CT worklist, and explain-again-why typing STAT does not override the laws of physics.

Then alien ships fill the sky.

When Earth is forcibly enrolled in the Galactic Ascension Program, humanity's occupations are converted into classes, abilities, and combat roles. Nurses become healer...