Lord John Grey
The Lord John Grey series collects historical mysteries, novels and shorter stories centred on Lord John, a recurring figure in Outlander. It can be read independently, but readers approaching it through the wider universe should finish Voyager first. Publication order is the simplest route through the catalogued stories; the whole series is optional companion reading and is not required for the main Claire and Jamie sequence.
Outlander readers should finish Voyager before starting Lord John Grey. Then use publication order for the catalogued novels and shorter stories; the whole route is optional and can also be read independently.
