Uriel's Ascent - Angel/Demon Series

"His chains were secure, the key was in my pocket, and the door to the new mausoleum was closed securely as I heard the anguished screams begin. He would continue to rage most of the night, until, exhausted, he would fall into a deep sleep that no one could wake him from. And I envied him." I am my brother's keeper. And when you consider my brother is Gabriel, the angel of Chaos, then you understand my guard must always be up.
I can never let Gabe out of my supervision, for he can destroy all of the planes of existence from boredom alone. Which is why I must always push away the pain of skirting the universe's wishes with a loophole in the rules just to find out that the woman I love is dead. I hide behind a mask of calm even as I'm torn by the tortured thoughts of never knowing my daughter. I am my brother's keeper, and I watch over him to save the oblivious humans that surround us.
But who will watch over me when grief pulls me down into its inky black depths?