Deadly Cool is definitely one of the more enjoyable YA novels I've read recently. Combining high school drama with crime investigations and a huge dose of teen snark, Deadly Cool offers up Nancy Drew, but with a modern flair and more fire in the form of Hartley Featherstone. 
 What I love about her is that she has an amazing sense of humor, she's snarky, witty and full of vivacity. My only complaint is that Hartley didn't really give Josh a hard time for cheating on her. It seems like she has a soft spot for him but I think it would have been epic if we saw her rip him a new one. 
 There's quite a bit of contemporary details and pop culture references that make the novel very current but the best bit is of course, the mystery. It's not overly technical, everything seems plausible and I had a fun time guessing who the killer was. 
 Another great aspect of the novel is the myriad of secondary characters. While not entirely fleshed-out, they don't fade into the background or come across as token characters. I love Hartley's best friend, Sam and of course, our male lead, Chase. The romance is at a minimum here, but I feel like it's more of on a slow burn, just waiting to explode later on in the series! 
 Gemma Halliday's writing is full of wit and charm and I really can't wait for the sequel, Social Suicide.