Heartsblood / Brin Murray.

Novel for young adults.

"Three heroes will rise. Wil, Jace and Leah were shattered by the horrors of the New Atrocity but must rise to find strength again before it is too late. If they are to stand any chance of stopping High Patriarch Sachs' vision of a world engulfed by fanaticism, fire and blood, they cannot stand alone. They must forge shaky alliances while knowing that in the great battle that is to come, the only friends they can truly trust are themselves. But then Wil is captured and seems destined to repeat his father's betrayal. The odds against them, already steep, become impossible. Because to save Wil now, they must take on the might of the Revelayshun alone. 'Hear the rhythm, we said, and feel the heartsblood warm.' I stand silent awhile. 'The words still hold true, tho they feel different to me now. Cuz yer gave yer heartsblood for em, is why. They did cost us more'n we can pay. But we've come this far, so can't leave off now. Have to make yer all count.'"--Publisher description.