A bishop's clerk is missing, as are several singers from the Highlands of Scotland. One singer, lost for 30 years, has returned home unchanged from "under the hill" with the good neighbors. Someone has leaked the details of a treaty. With the help of his wife Alys, who comes into her own in this latest mystery, Gil Cunningham must determine what's going on - and whether all these cases are related.
Unusually, Alys and Gil are detecting separately, although they are both in the Highlands, adding some interesting dialogue and sociology to an already interesting series. As usual, some of the plot seems obvious, but there are some ending twists that really throw the reader for a loop. Terribly enjoyable - I can't wait for the next book!