CRACK!Outside of the house, ectoplasmic hammers swung into being, one of them hitting its mark and embedding itself into the wood of the doorway. It immediately rebounded explosively, as the high pressure winds that were being held back were suddenly released. The wind barely scraped over the half-sunken Wystan's head and he could see it visibly lash out as it carried trails of psionic pink-purple fog in its wake, sinuous tendrils of wind which seemed all too real, and whose touch tore massive gouts of dust and dirt from the ground.
Within the door was opened as well, releasing a blast of high pressure psionic wind that hurt the head with a deafening howl of wind that gave everyone a headache. Everyone, knowingly or not, begins to accrue
1d10 temporary power points, a fact the more psionic members are likely keenly aware of occurring. This deep pink=purple fog is rich in a powerful psionic essence whose very presence was having an effect on the mind. Nothing could be seen beyond the howling chaos but a dim radiance in the distance, a shaft of sunlight escaping through a damaged door on the other side. It made Drosselmeyer's job significantly easier in navigating through as he pushed on ahead.
"FOLLOW ME!" The rat pushed forward, barely able to stand in the strong winds lashing about. The party should be able to follow, as rats attempt to cling to your fleeing bodies in order not to be blown away or swallowed by the ever-growing maw of the abyss behind you. The gravity shifted under your feet, turning your short but windy journey into an uphill battle, but with perseverance you will reach the door.
And for Wystan, half-sunk, the door would swing open to a torrent of feet and rats spilling forth (and 1d10 temporary power points from brief exposure). The entire house lost its structural integrity, and with a titanic crash the walls, roof, and land buckled downward into a deep freefall. The shift of the ground will be enough to eject Wystan who is dangerously close to the end of this new endlessly deep sinkhole in the ground. The mists rising from the hole howled once more spiraling into the sky... and vanished.
The Marlowe Mansion had been completely eradicated from the surface of the earth.
It wouldn't take much to recognize what it had become, an unsealed gateway into the underdark.