This Is How You Lose the Time War

the long version

Two time-traveling agents from warring futures, working their way through the past, begin to exchange letters—and fall in love in this thrilling and romantic book from award-winning authors Amal El-Mohtar and Max Gladstone.In the ashes of a dying world, Red finds a letter marked “Burn before reading. Signed, Blue.”So begins an unlikely correspondence between two rival agents in a war that stretches through the vast reaches of time and space.Red belongs to the Agency, a post-singularity technotop