The Unmade Sun - (Moonbrand Trilogy) by Joseph David Tucker (Paperback)

Book Synopsis

Two brothers said they'd become dragonguard together. One did it the right way, the other made a deal with the thing under the mountains...

The world of Masina has never known the light of a sun. Instead, the ancient mana from dead gods flows through all things, giving life and warmth and power, while the moon grants its silver light from above.

But when a mad warlord leads an onslaught to change that, three scholars are thrust into the fray to stop him. Luko, a young man harrowed by guilt. Uso, his elder brother. And Vai, the new girl from a far off land.

With their whole world lying in ruins and dragonkin lurking in every cavernous space, they forge an unbreakable bond and fight to keep the world dark.

Only, Luko can't control his mana.

Until he finds something that can...