Penric and the Shaman by Lois McMaster Bujold 5 Stars
The second of five novellas involving Penric, the youngest son of a minor noble family, and the demon he calls, Desdemona. This is a mini-series, set within the larger series of the World of the Five Gods.
Penric is continuing his studies of sorcery while getting more used to his demon Desdemona. He is ordered by his princess to aid an inquirer from the capital in a hunt for a missing shaman. Penric is a little put out to be interrupted from his scholarly work but Desdemona is glad to be off taking some action. The shaman is a person of interest in a strange death whereby the soul of the dead man does not appear to have been taken up my any of the five gods as was usual. The shaman, Inglis, disappeared at the time of the death. However all is not as it seems, and Penric has a difficult puzzle to solve, all the time being hurried along by the Inquirer who is his theoretical senior for this mission.
Another delightful tale with great characters, well plotted and reaching a satisfying conclusion.