An Echo in the Bone (Outlander, #7)

by Diana Gabaldon

A ley line is an observed alignment between two geographical features of interest, usually an ancient monument or megalith. There are a number of theories about ley lines and considerable controversy as to whether they actually exist as a phenomenon, and not only as an artifact. By that I mean that if you choose any two points that have interest for humans, there’s very likely to be a path that leads between them, no matter what those points are. There is a major roadway between London and Edinburgh, for instance, because people frequently want to go from one to the other, but this is not normally called a ley line. What people usually have in mind when using this term is an ancient pathway that leads, say, from a standing stone to an ancient abbey, which is itself likely built on a spot of much older worship. Since there isn’t much objective evidence beyond the obvious existence of such lines, there’s a lot of guff talked about them. Some people think the lines have a magical or mystical significance. I don’t see any grounds for this myself, and neither does your mother, who is a scientist. On the other hand, science changes its mind now and then, and what looks like magic may really have a scientific explanation (NB—put in footnote about Claire and the plant-harvesting). However, among the theories regarding ley lines, there is one that appears to have at least a possible physical basis. Perhaps you will already know what dowsers are, by the time you come to read this; I...