A citywide overdose crisis. A silent killer lurking in the shadows. One FBI agent determined to uncover the truth. FBI Agent Alex Frost knows that overdoses happen—but not like this. People who have never touched drugs are dropping dead, and the cases seem unrelated. He boss is convinced that these are just unfortunate accidents, her colleagues think she’s wasting her time, and every lead takes her nowhere. But Frost can't let it go. She's absolutely certain there’s something more sinister at play. To stop a killer no one believes exists, Alex Frost will have to uncover a truth no one else can see—before the body count rises. Pre-order your copy of Tell Me What You See, the fourth book in the best-selling Striker and Frost series, today!