OK, Night World was fabulous. FPW joins a handful of true masters in my mind. I don't think it could be made any better. Glaeken and Rasalom for the penultimate battle was THE fabulous choice.
BUT...
If FPW was just tying together only the Adversary series, with Dat-tay-vao, with The Tenant and with the Jack stuff in the Tomb...Perfection. However, perhaps with Jack's experiences with Rasalom in the hotel in Conspiracy, with him in the Florida Everglades, with Anya (and Oyv), with the Pillars from Dormentalism, FPW could write a prequel to Night World (after a few more Jack books) that ties in the "third player (Earth mothers)", that introduces Jack to Glaeken, and that makes Jack a more conscious and active player in the battle against the Otherness. Scar Lip should of course be included. Following this prequel where I would (with amazing hubris) have Jack tangle with a still not Omnipotent Rasalom, maybe some liberal additions to NightWorld could have Jack become a more conscious aid to Glaeken.
These are mere nits, since the 6 book cycle is by itself a work of fiction to rival The Lord of The Rings or The Amber Chronicles. However, without some effort like this, the Jack books become merely fun tough guy yarns, and are not leading to an apocolyptic climax, because that climax does not involve an aware, active protagonist in Jack.
I realize there can't be two main protagonists, but maybe Jack could be more of a Robin to Glaeken's Batman...
FPW, please let me know if you share any of my concerns regarding not being able to maximize the Jack ending along the lines that I have seen you building. Since you are a master creator, and I am a mere consumer of your works, you may have an even better set of tricks up your sleeve. Either way, I can't wait, and you have a fan for life. I've ordered every book that you've written from wherever I can find them recently, and they will all hold a position of prominence on my favorites shelf.
Thanks,
Chris