I've already bought Sepulchre and Citadel but haven't taken to them quite as much, possibly because I unreasonably want to have Labyrinth all over again in a brand new book, also perhaps because they are based closer to now and I liked the historical parts of the Alais story in the 1200's.
I've also just been given The Taxidermist's Daughter and The Winter Ghosts for Christmas.
Really I'm looking for other authors of similar books now, a past story and a present story with some kind of link, possibly with some real historical events referenced.
Can anyone suggest anything?