Quirky characters breathe energy into Jaffe's (Bad Girl
, for adults) silly, if sometimes confusing, mystery novel. Wannabe detective Jasmine, who narrates, is on a family vacation at Las Vegas's Venetian Hotel. When a runaway cat attacks her, she finds herself in the middle of a real-life mystery involving a famous model/actress, her fugitive husband and a very handsome young man with a British accent. Jas seems to attract catastrophe (after the cat attack, she runs into a wedding, causing the cake—and the bride—to wind up in the pool). Other characters, including her fashion-savvy best friend, who drives a van called the Pink Pearl, and an unlikable cousin, who considers flavored lip gloss dessert, come along for the ride, offering assistance and often also ending up in trouble (Jasmine and her best friends also all offer a funny running banter in tinted sections at the bottom of many of the pages). As readers race along with Jas to unravel the mystery, following its many twists, they may find some plotting hard to follow. Also, the inevitable final confrontation seems more cinematic than authentic. Even so, it's hard not to like a book with a bow-wearing bodyguard nicknamed the Fabinator and a main character who grew up playing Barbie Crime Scene. Readers will likely find themselves quickly clawing their way through this fun novel. Ages 12-up. (Feb.)