A new adult urban romantasy with witch x witch hunter, he knows who she is, she thinks he's just a clueless human, she's in her assassin era, he's in his spy era, she rides a dragon, and he's afraid of heights. Hollow Sacrifices is the second installment in the Order of the Hawk trilogy, and is for the fans of The Crimson Moth and The Discovery of Witches. She is the darkness who stands for the light.

Two years after the March on the Massachusetts Community, Talliana Hoffman is not the same young healer she was. She is a weapon poised to strike—an assassin of the Order. Knowing she is destined to end the war, Talliana must learn how to control the darkness that threatens to swallow her whole at every turn. With college classes, family pressures, and new abilities that she must keep hidden, she cannot afford any distractions. Especially not one with a smile as warm as the sun. Too bad self-control has never been her strong suit.

He is the light who stands for the darkness.

Caspian Campbell has been raised to do one thing: kill any witch that comes across his path. However, if the Brethren want to win this war, they must change tactics. His mission is to capture a witch's heart and make her tell him everything. Not just any witch, but the Order’s very own assassin who is responsible for ending so many lives. But when Caspian realizes she is nothing like he thought, he finds himself fighting a different war—one between love and loyalty.