This Is How You Lose The Time War  (Paperback, Gladestone Max, El-Mohtar amal)

A note is discovered by a Commandant agent among the ruins of a dying world. Burn before reading, it says. Thus begins a strange dialogue between two antagonistic agents determined to ensure the best future for their opposing factions. What was just a taunt or a brag on the battlefield has evolved into something more. something amazing something love-related that which has the power to alter both the past and the future. However, each of them would perish if their relationship was discovered. After all, there is still a battle going on. And that conflict needs to be won by someone.