One killer problem

"When Gianna 'Gigi' Ricci lands in detention again, she doesn't expect it to be her alibi in the death of her favorite teacher, Mr. Ford. Officially, Mr. Ford's death is an accident. Unofficially? Gigi doesn't buy it. Luckily, Gigi's friends with her high school's Mystery Club, and even though they have a zero percent success rate, she figures there's no better way to break that streak than with a genuine case to solve. So, alongside her best friend, Sean, and longtime crush, Mari, Gigi sets out to solve a murder. But it turns out that murderers are extremely unwilling to be caught, and the deeper Gigi gets in this mystery, the more dangerous things become. Between fending off a murderer, continual flare-ups of her IBS, and her archnemesis turning flirtatious, making it out of junior year is going to be one killer problem"--Provided by publisher.