Skull Rabbits and The Pale Lion

A silly kitbash I did ("What if _______, but skull??") that felt afterwords like it needed lore:

Skull Rabbits appear much like regular white rabbits -- aside from the antlers and red eyes. They are little threat on their own. They flee quickly at sign of danger like any rabbit would. Even the antlers are about as ineffective as you'd expect on an animal of such small size.

But better for you that it should flee than you should approach one quietly or see one accidentally. Lock eyes with one, and it will stare right back. Then the rabbit's head will take the shape of a bare human skull. Your skull. And your thoughts will fill with the fear and certainty that "That is my skull. It shares my skull."

The Skull Rabbit will hop away.

From that point onwards, you can no longer sleep. Because the Skull Rabbit does not sleep. Whenever the Skull Rabbit feels terror -- at the low level that's constant for rabbits or overwhelming at the sight of predators -- you will feel terror. The curse is unaffected by distance.

This is not the real danger.

Skull Rabbits are not independent things. They are lures in the baffling hunting ritual of The Pale Lion. Human heads are the lion's sustenance. But The Pale Lion (there is only the one) cannot easily enter human settlements without risk to itself.

Its rabbits can.

And the rabbit that shares your skull will now venture back into the wilderness. And The Pale Lion will hunt it, it will catch it, and it will eat it. And at that moment, wherever you are, you will fall dead. Your head missing and your neck a bloody stump.

Death to the Skull Rabbit by any other means will break the curse. So pray that you or something else kills the rabbit that shares your skull before The Pale Lion does.