The Abominable really did grab me, but only at the end. I was expecting another historical horror plot unfold but it never did. This one actually does link itself up to the political uncertainties in europe of the 1920s and ultimately, hinted in the end, to the second world war.
Actually I just discovered historical fiction mainly due to the sci-fi writers which I had precured books from started writing the stuff instead of post-apocalyptic/post-economic breakdown/cyber punk sci-fi which they originally started off with. Had they kept on going in the same vein I'd probably never or rather much later discovered this genre.
So I will make a note of the books you have mentioned above because I've never heard about them.
I'd suggest you do re-read The Baroque Cycle (Quicksilver, The Confusion, The System Of The World), it's extensive tiring and long but in the end a very rewarding trilogy from Stephenson.