Millicent Marbleroller dreams that one day she will play a pipe organ like the one at church. She teaches herself to play music with a piano she draws on the kitchen table at home. This summer, she finds herself working in the giant mansion of the deceased toymaker General Horatio Crackerhead. Soon, she is locked in a contest with the General's brother, Admiral Algernon Crackerhead to be the first to find the General's last great invention, the Crackerhead Yo-yo. But all that Millicent really cares about is the big, beatiful pipe organ that sits in the heart of the mansion, just begging Millicent to unlock its secrets, unravel the mysteries of a mansion that is more puzzle than house and somehow figure out how it all ties together with the song that keeps racing through Millicent's mind. Millicent Marbleroller and the House of the Toymaker is a work of magical, music fiction that is unlike any childrens book before it.