A return to form for the series!

Good:
We meet Sabetha! She's well developed character in addition to being Locke's obsession.
Locke's love blunders are masterfully depicted & invoke nice, fluffy schadenfreude feeling.
Two story-lines (historic & contemporary) are both enjoyable & intertwine nicely.

Bad:
Locke's origin story feels tacked-on as a hook for a sequel that is yet to materialize 8 years later.