Coming October 2025!

This sequel to the New York Times bestselling book The Mystery of Locked Rooms follows the beloved Deltas as they race to complete the most challenging escape room they've ever faced...and confront their fears in order to save their friendship.

When a strange invitation shows up in Sarah's backpack, the Delta's learn that their favorite funhouse, The Delta Game, is about to get some serious competition. The "Mystery Mansion" is opening just miles away and the ominous and cryptic owner has invited Sarah, West, and Hannah to come test it on opening day. It claims to be the biggest and best escape house ever, and based on the photos of gleaming rooms filled with high-tech puzzles, it just might be.

What's more, the kids have been offered a ten-thousand-dollar prize if they escape the house. For some reason, West and Hannah seem very interested in the cash prize, but the three friends are torn because they really don't want to be a walking advertisement for a competitor to The Delta Game. After all, that funhouse changed their lives, Sarah's life especially.

But maybe the only way to keep the funhouse, and their friend William Taters in business, is to accept the invite to this new Mystery Mansion, escape it in record time, and show just how lame and easy it is by comparison. The trio arrive at the mansion on opening day, armed with their "fortune favors the bold" attitude. But they quickly learn that nothing is as it seems . . . and unfortunately this time, not everyone plays fair.

SERIES AWARDS

Instant USA Today and New York Times Bestseller!
A Read with Jenna Book Club Pick for Summer 2024!
A Barnes and Noble "Best Book of 2024 (so far!)"
#1 INDIE NEXT pick for May/June!
Amazon Best Book of the Month April 2024!
The Week Junior Book of the Week!
Once Upon a Book Club Box pick for April, 2024!

“A twisty, turny treasure hunt where the real prize is friendship. Mr. Lemoncello wants to hire whoever designed this incredible escape room!” – Chris Grabenstein, #1 New York Times bestselling author of the Mr. Lemoncello series

“Lindsay Currie has crafted a winning mystery with confounding codes, misleading clues, and the lure of hidden treasure. It’s the ultimate escape room and will have you guessing until the final page.”
— James Ponti, New York Times bestselling author of City Spies

“Trapdoors, secret passages, and riddles galore. I loved every second of it!”
— Max Brallier, #1 New York Times bestselling author of The Last Kids on Earth

“In this page-turning thriller, Currie (It Found Us) builds suspense via high-stakes brain teasers in dark rooms and periods of isolation as the Deltas endeavor to solve the biggest, most dangerous series of escape rooms they’ve ever faced.” – Publishers Weekly

“A riddling, sporting adventure and a story of true friendship.” — Kirkus Reviews

“This page-turner with touching character moments makes a fun read for anyone who enjoys puzzle solving, escape rooms, and books centered around the power of friendship.” – Booklist

“With highly likable characters, authentic dialogue, and tension-building action, this exciting and engaging story will grab the attention of many readers who will not put it down until the end. Highly recommended”
— School Library Journal

“I love this trio. The loyalty and love they have for each other will solve any problem (and escape room)! I loved seeing their talents in action and how they handled their weaknesses. I want to visit the abandoned fun house! The description of each room is so cool. Long live the Deltas!!” – Max Chase, The Bookloft

“Take 3 parts “Goonies”, 1 part “Willy Wonka” and 5 parts imagination and you have the wonderful story Lindsay Currie packed into this exciting young readers novel! Readers will instantly be drawn into the adventure as it unfolds and will be on the edge of their seats with each new discovery explored. I couldn’t put this book down!” – Troy Derrer, Wordsmith Bookshoppe

“A trio of friends, a noble deed, a deserted fun house and a possible treasure makes this the perfect book for middle grade puzzlers or an edge of the seat read aloud that will have listeners begging for one more chapter! A thoroughly engaging store that will get those brain cells working.”
– Janice Penner, Watermark Books & Café

“Loved this fast-paced middle grade mystery. Using the framework of an escape room was a fun and original idea - and provided a great opportunity for the characters to work through some personal challenges, too. A great read!” – Kate Snyder, Plaid Elephant Books

“The clock is ticking as The Westing Game meets Willy Wonka with a dash of Stand by Me in this exciting adventure, as readers race to solve riddles and puzzles alongside the characters, who learn about themselves and each other straight through to the mystery's epic ending.” – Gibran Graham, The Briar Patch

“This is such a great vacation read! It's also perfect for the "read around the library" mystery category-- a smart, suspenseful story that readers will connect with.” – Tegan Tigani, Queen Anne Book Company

LINDSAY CURRIE

New York Times Bestselling Author