Elysium by Nikole Knight

Riley and his angels have finally found their Elysium, and together, they will defend it.
After enduring two months in Purgatory at the Seven’s mercy, Riley Shepard emerges alive but forever altered. To protect his angels, he must embrace the powerful darkness inside him, or risk the fate of the realms.
The universe trembles under the feet of Hell’s armies, and it is time for Riley and his angels to fight. They fight for honor and justice, for freedom and family. But most of all, they fight for love. For in the end of all things, it is love that will save them.
Let the final battle begin.