Lex Knightley is keeping count. It's been seventy-five days since Quin left for Los Angeles. Seventy-five days without one word from him. Sixty-one since she made a deal with a devil. A deal she already regrets. And exactly thirty-nine days since Onyx-the deadliest emotion-altering medication yet-hit the streets, leaving an escalating body count in its wake.With Zenigenic promising a new drug-an anti-Onyx to make the world a little kinder and a lot more compliant-it seems Xander Steele will stop at nothing to satisfy his desire for power and control. Quin's dramatic return brings more questions than answers. Lex suddenly finds herself right in the middle of it all . . . on a run for her life.It's a race against the clock to uncover Steele's diabolical plan as the fate of San Francisco hangs in the balance. Can Lex finally fulfill her mother's ambition to expose Zenigenic-or is it already too late?Caution: Emotion-altering medications are in the air. Find a mask. Hold your breath. Get ready for Revelation, the page-turning conclusion to the Legacy trilogy.