Case Closed: Mystery in the Mansion by Lauren Magaziner

You pick the path. You crack the case.

Carlos Serrano has never solved a mystery in his life. But when his mom, the owner of Las Pistas Detective Agency, comes down with the flu on the morning of the most important investigation of her career, Carlos has to step in. If the case goes unsolved, the agency, already on the brink of closing, could be done for good.

Armed with his best friend, Eliza, and her wild little brother, Frank, Carlos heads to the home of an eccentric local millionaire, where anonymous death threats, a buried treasure, and a houseful of cagey suspects are waiting. There’s just one problem: they can’t do it without you.

In this pick-your-own-path adventure, YOU decide which suspects to interview, which questions to ask, and which clues to chase. Tricky riddles, hidden secrets, and dozens of impossible choices stand between you and the truth. Choose wisely and you’ll catch the culprit and save the agency. Choose poorly, and it’s case closed.

Hilarious, high-stakes, and packed with puzzles, Mystery in the Mansion kicks off Lauren Magaziner’s four-book middle grade series, perfect for reluctant readers, puzzle lovers, and anyone who’s ever wanted to be the detective.

Collect the whole series:

• Mystery in the Mansion (#1)
• Stolen from the Studio (#2)
• Haunting at the Hotel (#3)
• Danger on the Dig (#4)

Book details
Paperback | Ages 8 to 12 | 400 pages | Black-and-white illustrations throughout