Sadie by Courtney Summers

When popular radio personality West McCray receives a desperate phone call from a stranger imploring him to find nineteen-year-old runaway Sadie Hunter, he’s not convinced there’s a story there; girls go missing all the time. But when it’s revealed that Sadie fled home after the brutal murder of her little sister, Mattie, West travels to the small town of Cold Creek, Colorado, to uncover what happened. Sadie has no idea that her journey to avenge her sister will soon become the subject of a blockbuster podcast. Armed with a switchblade, Sadie follows meager clues hoping they’ll lead to the man who took Mattie’s life, because she’s determined to make him pay with his own. But as West traces her path to the darkest, most dangerous corners of big cities and small towns, a deeply unsettling mystery begins to unfold―one that’s bigger than them both. Can he find Sadie before it’s too late? Alternating between Sadie’s unflinching voice as she hunts the killer and the podcast transcripts tracking the clues she’s left behind, Sadie is a breathless thriller about the lengths we go to protect the ones we love and the high price we pay when we can’t. It will haunt you long after you reach the final page.