The Doom of the Haunted Opera - (House with a Clock in Its Walls) by John Bellairs & Brad Strickland (Paperback)

The Day of Doom is a captivating and thrilling tale that will keep you on the edge of your seat from start to finish! When Lewis Barnavelt and Rose Rita Pottinger stumble upon an abandoned theater, they discover an unpublished opera score with the ominous title "The Day of Doom." Despite a mysterious warning, their music teacher heralds the piece as a masterpiece, setting off a chain of events that will change their lives forever.

But little do they know, eerie Henry Vanderhelm, the composer's grandson, has arrived with a sinister plan to awaken the dead and enslave the world! With all the adults enamored by Henry's charm, it's up to Lewis and Rose Rita to stop the dead from coming back to life.

Will they be able to save their town and themselves before it's too late? Find out in this spine-tingling adventure that will keep you guessing until the very end!