Charlie Carlisle's grandfather is ill. Charlie's friend, Singing Bird, a Teton Sioux, tells him that ravens have curing powers, so Charlie steals a baby bird from its nest. Granddad, a retired naturalist, encourages Charlie to record his observations of the bird and study the effect it has on humans. Charlie just hopes that the raven will make Granddad well.

1869. While on a much-needed respite with her husband Sam in Nottinghamshire, undertaker Violet Harper is summoned to Welbeck Abbey by the Fifth Duke of Portland to prepare a body. His Grace is known as the "mad duke," and Violet has more than an inkling of why when she arrives at the grand estate and discovers that the corpse in question is that of the duke's favorite raven, Aristotle. Many of the duke's servants believe a dead raven is a harbinger...