Superstition — Tori Scott

When Caitlyn Deveraux's brother is killed in Iraq, she receives a necklace as part of his personal effects that she thinks is a trinket he'd purchased for her. Instead it's a priceless antique he'd smuggled out of Iraq. From that moment on, her life as a college librarian is turned upside down. She's drawn into her brother's world of black ops, intrigue, and government conspiracies, working alongside Jacob Littlejohn and other members of Team Indigo to stop a general who wants the necklace for himself, and who seems hell-bent on wiping out her entire family to get it.