Emily's Rebellion — Patricia G. Penny

From the Not Just Proms & Parties high-low series for reluctant teen readers and ESL students, which features quick reads, dynamic, character-driven plots, and positive messages for young women.
In the fifth installment of this popular series, we meet Emily. She has a mind of her own, a flair for defying her mother, and can't resist getting a tattoo or dating Jeremy, a guy with a bad reputation, especially because she is forbidden to do both. When her grandmother asks her to house-sit, Emily jumps at the chance to throw a party, and makes sure to invite her new boyfriend's buddies. By the end of the night, her grandmother's jewelry is missing, and all fingers point to Jeremy.
Determined to clear his name, Emily starts digging to uncover the thief's identity, and in the process learns that her brooding boyfriend has more than his share of problems. Add to this the fact that Emily's parents are in the middle of a difficult separation, and that her brother has a gambling problem, and Emily realizes she needs to stop causing trouble and start helping the people around her.