Indigo

Investigative reporter Nora Hesper spends her nights cloaked in shadows. As Indigo, she's become an urban myth, a brutal vigilante who can forge darkness into weapons and travel across the city by slipping from one patch of shadow to another. Her primary focus both as Nora and as Indigo has become a murderous criminal cult called the Children of Phonos. Children are being murdered in New York, and Nora is determined to make it stop, even if that means Indigo must eliminate every member. But in the aftermath of a bloody battle, a dying cultist makes claims that cause Indigo to question her own origin and memories.
Nora's parents were killed when she was nineteen years old. She took the life insurance money and went off to explore the world, leading to her becoming a student of meditation and strange magic in a mountaintop monastery in Nepal...a history that many would realize sounds suspiciously like the origins of several comic book characters. As Nora starts to pick apart her memory, it begins to unravel. Her parents are dead, but the rest is a series of lies. Where did she get the power inside her?
In a brilliant collaboration by New York Times and critically acclaimed coauthors Charlaine Harris, Christopher Golden, Kelley Armstrong, Jonathan Maberry, Kat Richardson, Seanan McGuire, Tim Lebbon, Cherie Priest, James Moore, and Mark Morris join forces to bring you a crime-solving novel like you've never read before.
"Nora could have vanished into the shadows, but she didn’t need to. The people crowded around the sidewalk memorial for Maidali Ortiz were so lost in their grief she might as well have been invisible. Normally she had to work a little harder to hide in plain sight, but not today. It made her job much simpler.
The girl’s body had been dumped at the top of the steps that connected Heath and Bailey Avenues, a broad set of concrete stairs with black wrought-iron railings, shaded by lush oak trees. Fall had arrived at last, and a cool breeze rustled the leaves of those trees. During the day, the long descent from Heath to Bailey would be pleasant enough, but at night, with streetlamps that were constantly broken, the stairs would be dark and forbidding. She wove through the crowd to get a better look at the steps. Stout, middle-aged Dominican women clustered together, keeping mostly to themselves, but the high school and middle school kids weren’t so discriminating. The Irish and Dominican and Cuban kids stood together, girls holding each other, while others added flowers and stuffed animals and framed photos to the memorial that had grown up around the graffiti- covered US mailbox to the left of the stairs."