"The creator of the Shadowcrafting path, now a chattering invalid, maintains during brief moments of lucidity that strange shadow entities wait in every darkened corner. Certainly the shades conjured by this path give credence to such notions, but the Kindred in question asserts that these beings devour light and feed upon the very essences of those who would dare truck with them."
-Clanbook Tremere
What if these beings are Nephwracks, beings so devoted to the Neverborn or the Labyrinth that they have transformed into something like them like a ghostly apotheosis. They have gained the power to locally control the Labyrinth. Plasmics, creatures from the very stuff of the Labyrinth sometimes make their way into the Underworld.
Are ghosts imprisoned in soulsteel or are they sacrificed to it to create something that is like Oblivion?
What if Whispers does more than just giving a psychic connection to the Neverborn. It actually changes people. The character can hear the psychic screaming of the Neverborn as if they were in the Labyrinth or at the tombs of the Neverborn.