The final book in the New York Times bestselling House of Secrets series that was called “a breakneck, jam-packed roller coaster of an adventure” by J. K. Rowling. Created by Hollywood director Chris Columbus (of Harry Potter fame) and bestselling author Ned Vizzini (It’s Kind of a Funny Story), with the acclaimed author of the Codename Zero series and the Fourth Stall saga, Chris Rylander. With their last adventure just barely over, the Walker kids thought life would finally go back to normal. But things don’t remain calm for long . . . especially when the colossus Fat Jagger turns up in San Francisco Bay—and he’s in danger!


本書為《紐約時報》暢銷書《秘密之屋》系列完結篇，J.K. 羅琳盛讚：「本書讀來就像乘上客滿的雲霄飛車般緊張刺激。」本書由好萊塢導演克里斯．哥倫布（曾指導過《哈利波特》電影）、暢銷作家奈德．維齊尼（《情定杜鵑窩》作者）和知名作家克里斯．瑞蘭德（著有 Codename Zero 和 The Fourth Stall 系列）所著。隨著最終冒險落幕，沃克三姊弟以為生活會就此回到常軌，但安靜的日子並沒有持續太久……因為就在這個時候，他們的巨人好友出現在舊金山灣，並深陷危險之中。