Marvin didn't raise the key again.
Not immediately.
The runes on the door had changed the moment he stepped closer, layering over each other instead of aligning. Unlike the previous doors, this one didn't respond to position alone.
It accumulated.
He watched carefully.
The outer layer pulsed once—slow, deliberate.
Then faded.
A second layer lit beneath it.
Then a third.
Not random.
Ordered.
Marvin shifted slightly to the side.
The sequence paused.
He returned to his original position.
It resumed.
"Proximity maintains it," he said.
The figure behind him didn't respond.
Marvin stepped closer.
The layers appeared faster now, stacking one over another, each with a slightly different pattern. None of them completed on their own.
Incomplete pieces.
He raised the key halfway.
The top layer reacted—brightening for a moment—then dimming again when he didn't commit.
"Not yet," Marvin murmured.
He lowered it.
The sequence continued without interruption.
This wasn't a door you opened quickly.
It was one you observed.
Marvin focused.
The first layer returned.
Then the second.
Then the third.
He didn't move.
He didn't interfere.
He let the entire sequence play out.
One layer at a time.
Until—
It repeated.
Marvin's eyes sharpened.
There.
A cycle.
Not long.
But consistent.
He stepped back slightly.
The sequence slowed.
Almost stopped.
Then he stepped forward again.
It resumed.
Control.
Not activation.
Marvin waited for the first layer to appear again.
Watched it.
Then the second.
Then the third.
He raised the key—
—but not fully.
Only enough for the light to touch the surface.
The first layer reacted.
Locked.
It didn't fade this time.
Marvin held his position.
The second layer appeared beneath it.
He adjusted the angle of the key.
Slightly.
The second layer locked.
Two fixed.
The third began to form.
Marvin didn't rush.
He watched it stabilize.
Then tilted the key again.
The third layer locked into place.
The door responded immediately.
Not opening—
Stabilizing.
The flickering stopped completely.
All visible layers aligned into a single structure.
Clean.
Complete.
Marvin exhaled once.
"Sequence," he said.
Not position.
Not force.
Timing.
He lowered the key.
The structure held.
No reset.
No decay.
He had done it correctly.
The seam in the door appeared.
Faint at first.
Then clearer.
Marvin didn't hesitate this time.
He stepped forward.
The door opened.
Not outward.
Inward.
The space beyond wasn't visible at first—only darkness, deeper than the corridors before.
Marvin crossed the threshold.
The moment he did, the light behind him vanished.
The door closed.
And for the first time—
The House did not follow him.