Day of Reckoning - The Devourer Chronicles, #3

For humanity to survive, one of them must die. Just as Rej finally realizes his feelings for Astra, she chooses to join a team on a mission to infiltrate Vul and put an end to the Ancestor's tyranny. There's only one catch. One of them will have to die for their plan to work. To make sure she comes back alive, he'll have to go too. Now he finds himself on the most dangerous, war-torn planet in the galaxy, where everything they encounter is trying to kill them.
Before the end, the fate of humanity relies on Rej completing a mission he never wanted in the first place. DAY OF RECKONING is the final book in the trilogy that began with the fast-paced interstellar adventure, DAY OF THE DEVOURER.