New York Times bestseller! From Matt and Rebecca Zamolo, creators of the mega-popular YouTube series Game Master Network, comes a new thrilling novel about everyone’s favorite mystery-solving team as they go toe-to-toe with the mysterious and menacing Game Master. Rebecca Zamolo is on a mission to save her summer. Instead of going to camp like she’d planned, she’s been stuck in summer school. But today is the day! She’s going to present her final science assignment—using her Nana’s borrowed vintage zoetrope—and then she’ll be free to have fun. But as Becca and her classmates wait for her teacher to arrive, a menacing voice comes over the intercom claiming to be the Game Master! The kids quickly discover that the Game Master has locked the doors, scared off the teachers, and made it clear that if Becca and her friends don’t solve the clues that have been left behind, they’ll never get back Becca’s irreplaceable zoetrope, never finish summer school, and never get to enjoy what’s left of their summer vacations. Becca doesn’t know who is behind this, but she won’t let the Game Master win. But will she and her classmates be able to work together to solve the puzzles and escape their school before time runs out? Join YouTube’s favorite mystery solving team as they go toe-to-toe with the Game Master in the first book of this action-packed series from beloved YouTube creators Rebecca Zamolo and Matt Yoakum aka MattySlays, stars of the hugely popular Game Master Network. Fans of StacyPlays’s Wild Rescuers series and Pat & Jen’s PopularMMOs Presents graphic novels will love this thrilling and engaging YouTube-inspired adventure.

New York Times bestseller! From Matt and Rebecca Zamolo, creators of the mega-popular YouTube series Game Master Network, comes a new thrilling novel about everyone's favorite mystery-solving team as they go toe-to-toe with the mysterious and menacing Game Master. Rebecca Zamolo is on a mission to save her summer. Instead of going to camp like she'd planned, she's been stuck in summer school. But today is the day! She's going to present her final science assignment-using her Nana's borrowed vintage zoetrope-and then she'll be free to have fun. But as Becca and her classmates wait for her teacher to arrive, a menacing voice comes over the intercom claiming to be the Game Master! The kids quickly discover that the Game Master has locked the doors, scared off the teachers, and made it clear that if Becca and her friends don't solve the clues that have been left behind, they'll never get back Becca's irreplaceable zoetrope, never finish summer school, and never get to enjoy what's left of their summer vacations. Becca doesn't know who is behind this, but she won't let the Game Master win. But will she and her classmates be able to work together to solve the puzzles and escape their school before time runs out? Join YouTube's favorite mystery solving team as they go toe-to-toe with the Game Master in the first book of this action-packed series from beloved YouTube creators Rebecca Zamolo and Matt Yoakum aka MattySlays, stars of the hugely popular Game Master Network. Fans of StacyPlays's Wild Rescuers series and Pat & Jen's PopularMMOs Presents graphic novels will love this thrilling and engaging YouTube-inspired adventure.

New York Times bestselling authors and creators of the mega-popular YouTube series Game Master Network Matt and Rebecca Zamolo return with a brand-new adventure about everyone's favorite mystery-solving team. Rebecca Zamolo has managed to foil the Game Master's plans before, but this time the Game Master has snake-napped Nacho, her good friend Miguel's pet. No way is Becca going to let the Game Master get away with this dastardly plan. But when the clues lead Becca and her new friends in the direction of the one house in their entire neighborhood that none of them ever want to go near, they know they have no choice but to screw up their courage and dare to investigate, if they want to rescue Nacho. But the problem is that getting into the superspooky house is way easier than getting out. The Game Master is up to their old tricks, and Becca, Matt, Kylie, Frankie, and Miguel are going to have to face their fears and use all their smarts and strengths to solve the puzzles and games and save the day. Mansion Mystery is another action-packed adventure from New York Times bestselling authors and super-sleuthing team Rebecca and Matt Zamolo, stars of the hugely popular Game Master Network. Read the book and unlock special clues that will open exclusive content online!