2.5-3 
 A young girl, Gemma, shows up in Scarlett's office worried about her brother's recently odd behavior. Gemma believes her brother may have had something to do with the recent suicide of one of his friends. She enlists Scarlett to investigate. Soon Scarlett is being pulled into an underground world that may have the answers to who murdered her father years ago. 
 The voice in this is good, and I really enjoy Scarlett as a character. She's smart and plucky, and she knows it. She relies on her brain, and a few good contacts. I loved details such as she drummed up customers by dropping business cards in school bathrooms across the city. And I definitely enjoy speculating the many reasons a teen might need to hire a private investigator. 
 I wish there had been more world building. The further into the novel I got, the weirder it got in terms of me accepting plot twists and conspiracy theories. If I had been given more in terms of the world, or more building of the mystery, this might have been easier for me to stomach. Maybe it would have been easier too if there had been a mundane case running at the same time as Scarlett kept getting pulled into the world of Gemma's case. Either way, I needed more. The novel was fast-paced, and logistically has the room to grow in length for more world building. 
 Part of this may have been my expectations. I was expecting, and looking forward to, a fairly run-of-the-mill mystery. And then hints of supernatural I wasn't anticipating were thrown in. At the beginning of the novel I was thinking how this could be a fun, YA mystery series. But I'm really not sure how the series would continue beyond this book. 
 Thank you to Netgalley and Little Brown Books for Young Readers for a digital ARC of this novel.