Unspeakable Horror!

The sleeping parents transmogrify into a carnivorous Blob.

The screaming awakens the twin girls in their bedroom
where many shelves of button-eyed creatures watch their panic.

The bioluminescent mass of the carnivorous Blob
crawls up the stairs,
raps gently on the door.
The twins refuse to open up.
They smell the stench of the Blob beneath the crack in the door.

The Blob desires the girls,
yearns to immerse them in the pocket of digestive acid at its center.

The Blob clenches itself into a gigantic muscle
and smashes the door to kindling.

The twins, in their nightgowns and bare feet,
climb down the drainpipe and escape.

The mob carries the elderly woman bound in duct tape
to the pyre in the church parking lot.
The traveling witch-hunters with ESP
perceive the seed of the Blob in the woman's brain.
The parishioners poise torches above the accelerant-soaked woodpile,
waiting for a cue when

The woman transmogrifies
horrible oh my god screaming Blob:
first the melting,
then the coalescing.
It leaps,
smothers righteous parishioners.
Tentacles spring forth with the speed of the frog's tongue.
Burning spray of digestive acid spurting from underbelly nipples.
Faithful parishioners and witch-hunters scatter,
aim shotguns at the brain-mass
hidden deep in the center.

The Blob slithers away into the bay.

The surviving parishioners sight its mass
like the back of a sea serpent traveling into the open ocean.

The Blob follows the telepathic homing signal of its master
that gathers its children in the nest of the abyss.

The twin girls,
now accomplished Blob-hunters,
infiltrate the secret cult of the master Blob.

The initiates of the Blob-cult line the cliffs of the secret cove at midnight.

The twins see the candles of the cultists
penetrating the forested shadows all around.

The bioluminescent mass of the Master Blob fills the cove with its eerie light.

The cult members prepare the twins to be sacrificed
to the mountainous maw of the Blob that rises up on the beach.

The twins, armed with flashlights,
travel willingly down the gullet of the massive organism.

Their research proves correct.
They communicate successfully with the Blob
through focused telepathic images and clicking noises.

They explain to the Blob that people have feelings too.

The Blob provides them a comfortable bubble of oxygen near its brain mass,
far away from the pocket of digestive acid.

The twins persuade the Blob to eat fish instead of people.
The twins agree to keep the Blob company in its home in the abyss.

Seventy years later
the Blob gingerly places the peaceful bodies
of the pale twins on the beach,
entwined together -- their hair long enough for a ladder to the sky.