Embertide

The Fallow sisters encounter a mystery in the distant past in "another time-slipping and spirit-battling adventure.... Entertaining" ( SciFi Mind).
As the air begins to hint of spring and the Fallow sisters recover from the events of Christmas, things start to feel normal again-but that's not going to last long. They've made dangerous enemies-not all of them human-and soon darkness intrudes once again on their everyday lives in London and Somerset. The approaching birth of Luna's child puts her in danger of otherworldly attack. Serena's relationship with film star Ward is going swimmingly, but when she's pulled back into the past while on location with him in Brighton, she discovers the body of a dead airman. It must be significant-but how? And what in the world is Ward's ex doing there in the year 1893?
"An acute sense of landscape, the stylistic grace needed to make that landscape pop like a Constable painting, and characters congenial enough to draw us in." - Locus

"A delightful series of books." - SFCrowsnest
Includes a preview chapter of the conclusion of the series, Salt on the Midnight Fire