Quell Marionne's Rite of Induction to House Marionne sent shockwaves through the magical world, unearthing secrets and her own deadly power. With nowhere to go, she is on the run for her life and finds refuge with the mysterious Beaulah Perl, who promises sanctuary. For a price.

Jordan, an assassin, has been, charged with locating the elusive Sphere, the source of all magic. But when his brotherhood reveals its sordid intentions and he uncovers the deadly ambitions of Beulah, he must make a choice-partner with Quell. Or kill her.

With broken hearts and ancient secrets, Dungeon of Shadows reveals that some that are worse than death.