Sisters Red by Jackson Pearce

Two fiercely loyal sisters are bound by a family duty to hunt shape-shifting predators that prey on humans; the older sister is hardened and scarred by past losses while the younger longs for a normal life. When a new, more dangerous pack emerges and a complicated romance threatens to pull them apart, they must confront secrets from their past and decide how far they’ll go to protect each other and the people they love.

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