Two agents on the opposite side of a time war, Red and Blue, start their correspondence as a dare. But the letters turn into something beautiful, romantic, and dangerous, so dangerous that it might cost them to lose their past and future. This Is How You Lose the Time War is a captivating story about forbidden love and what we risk to protect that great love. It is incredibly light on the science behind the world at war and focuses instead on the romantic development through letters between Red and Blue. For avid science fiction readers, the mystery behind the time war was easy to figure out and was a bit of a disappointment for me. Nonetheless, Amal El-Mohtar and Max Gladstone delivered a stunning novel of an epic love with breathtaking prose.