I have a problem with the Blood Curse from the Legacy of Kain series.

It makes no sense.

Simultaneously afflicting an entire race with a condition that “imprisons” their spiritual essence within their flesh, makes them supernaturally dependent upon blood (because they instead need souls if they remain in the Underworld long enough) for sustenance, and renders them “sterile” to boot.

No, the curse makes no sense. The Hylden aren’t a kind of people that “inflicts” curses. And perhaps most important of all — they aren’t the kind of people to remain silent about it — they’d gloat at every available opportunity.

So I’ve contrived my own answer.

This is not “the” answer, and will never be official. This is my answer.

The Hylden Didn’t Do It…
It makes no sense that the Hylden would use a supernatural weapon to attack the winged race — they just aren’t a magical people. Even the “Glyph Magic” they’re apparently responsible for “works like” technology, or at least “Magitek.”

No, the supernatural disposition toward consuming first blood, then souls given time to adapt to the Underworld, is much more likely a preexisting condition.

Buh-wuh? How could the Blood Curse be a preexisting condition?

Consider the cultural significance of the “Wheel of Fate” and “the redeeming cycle of death and rebirth” to the winged race as a whole.

…The Wheel of Fate Did.
Unlike Kain and other vampires from the Soul Reaver Era, the ancient vampires were living creatures — not revenants. Vorador is likely unique among the newer generations of vampires for having been alive at the time of his transformation. However it’s likely any transformed human Pillar Guardians were as well.

What seems reasonable to me is that the the “predatory blood-thirst,” the “sterility,” and the “imprisonment of spirit” are connected to say, a pact or covenant the winged race formed with an entity called the Wheel of Fate.

Essentially, the Wheel of Fate “purged” the winged race of their (preexisting) blood thirst via reincarnation. Without the cycle of reincarnation, the winged race is “sterile,” and the process only works if a creature’s soul is available.

Now a part of the equation I haven’t solved is how the winged race became immortal, or their souls otherwise became “imprisoned within their flesh.”

The simplest answer may be that the creation of the Pillars of Nosgoth themselves rendered the winged race immortal — thus denying them their “purifying cycle,” and allowing the blood-thirst to effectively “return.”

No True Children
I have an additional hypothesis that veers a bit into “Epileptic Trees” territory, which is that because we never see children of the winged race, it’s entirely possible they incarnate as fully-formed adults — similar perhaps to the “regenerations” as shown in the series Doctor Who.

While I’m positive the real reason we never see “children” was a technical limitation in creating the games, I prefer to use this detail to reinforce my hypothesis. I mentioned this isn’t an “official” explanation, right?

Hub of the Wheel
It’s worth noting the Elder God is not the Wheel of Fate. He specifically refers to himself as “the hub of the Wheel” and as being “at the center” of the process, and he further describes his actions as spinning souls on the Wheel.

Clearly, the Wheel of Fate is a separate thing, and this is reinforced by his use of terminology — calling the vampires “parasites” is a reflective accusation, better describing himself than those he has accused and persecuted.

As the Pillars of Nosgoth extend the lifespan of humans, it’s even possible the architects of the Pillars (whom we never encounter) may have intended to use the Pillars as a replacement for the Wheel of Fate, after possibly having discovered the Elder God siphoning energy from the process.

This might even be at the root of the Elder God’s hatred for the winged race — since they exposed him in a bygone era, he hoped to eradicate them — and the Soul Reaver was designed specifically to destroy him.

This is a tidy explanation but much of it is based on speculation.