You know, I was just going about my business after writing that quick snippet for the clinic-scene, but for whatever reason something kept nagging me and I kept thinking about Bloodborne. The (false) Paleblood Hunters reminded me of the Hunter's Dream and the Doll, and something that really stood out to me from the Doll's dialogue when I heard it on my recent playthrough of the game came back to me:
Good hunter... Your presence somehow soothes... I sense the ancient echoes, they course your veins...
This was remarkable because I wondered at the time what had triggered her to say this, as I realized that she had made no such comment after me killing Amygdala, despite it being undeniably ancient. So I looked it up, and the trigger for this line is apparently to have killed Rom.
But that doesn't make sense; Rom is explicitly referenced as a Byrgenwerth scholar, which would make her, at most, a human lifetime older than the Healing Church, if she happened to be basically about to die of old age when she ascended. There is very little means of determining how long ago it was, but Redgrave (author of
The Paleblood Hunt) estimated that Gehrman had been held in the Hunter's Dream for about a hundred years. We also know that Master Willem was alive at the time of her ascension, and that he remains so at the time of the game; Willem (despite surprisingly having more HP than most of the huntsmen found in the game) also seems to be almost entirely human (aside from
a bit of weirdness on the back of his neck), and he seems both very weak and very old. His research/Rom might have extended Willem's life past its natural span, but still, it sort of sets some parameters on how old Rom might reasonably be.
Now, even if I'm super generous with this and presume Rom to be in excess of two hundred years old (which would make Willem... surprisingly youthful for his age), it's still somewhat arguable whether this would make her "ancient". Still, it probably wouldn't be wrong to label her as such... but then I considered that Rom is the
only one to elicit this response. Bypassing her, it is possible to kill Amygdala, Ebrietas and Queen Yharnam, not to mention various other, obviously and undeniably ancient creatures in the old labyrinth; all of which are are definitely much older than Rom. (Not to mention that you can literally kill Rom in the old labyrinth before encountering her in the lake, and still not get that dialogue.)
But even if we disregard the old labyrinth for being extra optional, and Amygdala for being optional as well - if we consider only the things one
needs to kill before getting to Rom - we
still encounter a problem: the Shadows of Yharnam. Even these guys, being Pthumerians, are
much older than Rom, and the player
needs to kill them to reach Rom.
So... how does that line make sense? It
could just be that Rom possesses and passes on the blood echoes of Kos, but even that brings up new questions, like why Rom would have Kos' blood echoes (unless Rom killed Kos?) and why Kos is apparently more ancient than Amygdala?
So I looked up the lore on blood echoes yet again, one of the things that has always sort of been that throwaway, manga-esque bit that was just an excuse to have "souls, but in Bloodborne". It confirmed what I remembered (and wrote for the OP):
Blood Echoes are the echo of someone's will. Like a ghost is the lingering image of a person, Blood Echoes are the lingering presence of their will that stays long after the person has passed away.
But then I read on, looking specifically for something that would explain Rom triggering that dialogue, and I read a trivia line about them that I have read before, but which now hit me a whole lot harder:
In the Japanese version, it is called "Dying Wishes of the Blood".
Not just "dying wish" or "dying will", as I remembered, but specifically the dying wishes "of the Blood". Then I read it all again. And again.
"Blood Echoes are the echo of
someone's will. Like a ghost is the lingering image of
a person, Blood Echoes are the lingering presence of their will that stays
long after the person has passed away."
Nowhere in that does it say that the dying will passed on is that of the creature slain in that moment, nor does it say that it is echoes of those slain by that creature. It occurred to be that with the Orphan of Kos, the player actually witness the orphan
being born before the battle; it only became active once approached by the player, and has thus not killed
anyone to accumulate blood echoes from... yet one receives a substantial amount of them for slaying it.
My theory, then, is this:
all blood echoes, from the measly amount received from huntsmen and crows to those from the strongest bosses, are echoes of the Great Ones; specifically, given their name in Japanese, dead Great Ones. The fact that the Doll only sense the soothing "ancient echoes" after killing Rom, then, is not because Rom's blood echoes were especially ancient, but rather because killing her has lowered the barrier separating the waking world from the Great Ones.
In other words, it is not that the player comes into possession of new echoes that are ancient, but that something ancient now echoes strongly and palpably inside of the player... perhaps the same thing that seems to drive everyone else mad after killing Rom? Something now echoing strongly in their blood? And if so... it is very interesting that something that drives everyone else (except the especially powerful, namely Hunters and Queen Annalise) mad is "soothing" to the Doll.