The curious vanishing of Beatrice Willoughby

"When six-year-old Beatrice Willoughby vanished at the Amadeuses' annual All Hallows Eve party, people in the tiny mountain town of Nevermore were quick to whisper: They were always odd. Their house is full of dark magic. And when Mort Amadeus was pegged for the crime, the Amadeuses, once the center of society, retreated. They closed their doors, disappeared from life. People almost forgot. Until thirteen years later, when six envelopes land at the doorstep of six households in town: We cordially invite you to a celebration on the 31st of October this Saturday evening at the Amadeus household. So begins the mystery of who was really responsible for the missing girl thirteen years ago. Was it Duchess von Pelt, whose face no one has ever seen? Mrs. Raven, the keeper of the local inn? Wormwood, the Amadeuses' mysterious caretaker? Dr. Foozle, the town pharmacist? Count Baines, who seems to know when unlucky things are about to happen? Judge Ophelius, who presided over Beatrice's case originally? Mr. and Mrs. H, a couple who no one can ever quite remember? Or somehow, might precocious, eleven-year-old Dewey and his storytelling dad, Chaucer, be somehow mixed up in all this? The guests must work together to identify the guilty party among them over the course of the evening-but beware the ticking clock, because at midnight, everything is going to change!"--