There was something else afoot that October, something stretching and straining and panting, but it was mostly as of yet unseen. Later it would have a name, but for now it simply agitated everything uncanny it touched and the Lynch brothers were no exception. (CDTH prologue)
This is such a fascinating line, with so much to unpack. What is this actually referring to?
I keep having this idea that Ronan and Declan, and probably Hennessy too, are human avatars in some sort of larger supernatural battle. Possibly a three-way battle. With Adam, Matthew and Jordan also playing a role.
There are continuous references to the trees, as sentient beings, and there is reason to think they are using Ronan to further their ends.
There are the moderators, who are supposedly a government ops group, who want to stop dreamers, and yet they're made up of dreams. (That was a twist I never saw coming!) So why would they want this? Who is giving them their orders?
The books say outright that Lindenmere is not just a dream, but a shape given to something that came through Ronan's dream. So what about Bryde? He's Ronan's dream, but at one point, he says to himself, "It's harder than I thought," Bryde said. "Being out here. I thought I knew what I wanted . . . " (MI chpt 33) Which indicates that Bryde too is more than a dream, but something sentient, a shape given to something that came through Ronan's dreams.
And what about all the references to water. The rivers, Great Falls, and all the references to the sea. Like the dream given by the Dark Lady portrait. Is this simply a metaphor for energy and magic? Possibly, since it fits the existing metaphor: Matthew is drawn to water as a source of energy, Ronan can enter it and take things out (baggie with teeth), Declan is drowning in it.
And what about Boudicca, that trafficker of dreams. They must have some role. And Mór Ó Corra is part of Boudicca.
Then, the quote above names the Lynch brothers as something uncanny. ALL the Lynch brothers. In Ronan's and Matthew's case, this seems obvious. They are dreamer and dream. But Declan? He seems about as ordinary human as you can get. And yet - Niall was still his father. Is there some recessive tendency inside him? And we know very little about Mór Ó Corra, but awhile ago @notsohiddengeek pointed out to me the connection in the name to the Morrigan. Is there something in Declan's heritage that he's been denied? Declan loves art, but he's referred to again and again as a storyteller, which is also an art. Will that have a role?
Anyhow, these are just speculations and ramblings. I'm sure the author will give us something far more interesting than I could come up with.