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"It was a perfect read; fun, funny, and I couldn't put it down. I can't wait to tell all my friends I got to read it first!"
--Madison, age 13
"(Darn) book doesn't have any boring parts. How am I supposed to go pee?"
--Tory, age 13
"I read this book in one day. I even took it to football practice. It was really good."
--Cody, age 11
" I loved how the story made me think Chase was the killer, and how much I really hoped it wasn't him. I give it 4.5 stars!"
--Laura, age 15
"There's nothing like a good mystery, and Deadly Cool definitely hit the spot. It was suspenseful, scary and downright intriguing while at the same time, there were moments of laughter and a cuteness that you don't always see in murder mysteries. Hartley's adventure kept me reading until the late hours of the night (when in truth, I should have been studying or sleeping). I will definitely be reading this book again, not to mention eagerly awaiting Gemma's next work of art!"
--Megan, age 16 (reporter for her school newspaper)
"A murder mystery with a snarky Heathers feel so funny I literally spit a French fry at a pigeon while reading...genius!"
--The Page Turn
"Gemma Halliday's books are so addictive they should come with a surgeon general warning. Seriously, don't start DEADLY COOL late at night before a busy school or work day because you'll never get to sleep. I couldn't stop turning the pages. Move over Nancy Drew -- Hartley Grace Featherstone is on the case!"
--Amanda Brice, author of Codename: Dancer
"A wonderfully entertaining teen murder mystery with a perfect dose of humour."
--The Mocha Latte reviews
"Wow! Who knew murder could be so much fun. Deadly Cool is a must read!"
--C.C. Hunter, bestselling young adult author
"Reading this caustic-voiced and fast-paced mystery, I couldn't believe this is Halliday's debut YA novel, it is so spot-on! Her narrator and reluctant Nancy Drew, Hartley, is funny, brave, and relatable. Teens and adults will not be able to race through it fast enough!"
--Mrs. Nelson's Reviews
Cybil Award Nominee

a young adult novel: ages 12 & up
Harper Teen
ISBN 0062003313
Available now
First I find out that my boyfriend is cheating on me. Then he's pegged as the #1 suspect in a murder. And now he's depending on me to clear his name. Seriously?
As much as I wouldn't mind watching him squirm, I know that he's innocent. So I'm brushing off my previously untapped detective skills and getting down to business. But I keep tripping over dead bodies, and I'm still no closer to figuring out who did it. And what's worse: all signs seem to point to me as the killer's next victim.
I really need to pick a better boyfriend next time.