Also I think… Backing away would be good. You need some way to get around it.
She's cold, and not everything is quite working properly, but Bina manages to get to her feet.
"Holy crap. Holy crap!"
Kendra is not being helpful right now.
>grab lamp,grablampgrablamp
Bina considers grabbing the lamp, but her experience with the swiffer doesn't make her particularly confident that it would help.
And that was when this thing was HALF the size it is now.
It's head is the size of her torso. The empty eyesockets of it's skull are dark. This thing would be less disturbing if it had eyes or some kind of ominous glow, but it doesn't.

She looks into where it's eyes should be and nothing looks back at her
By the time she's managed to get to her feet under her so she can lurch away from the wall, the thing is almost at the bottom of the stairs.
Dang, she'd forgotten how FAST the creature is. With how it's built, it should lumber, especially now that it's so huge, but it doesn't. The dang thing practically skuttles.
A bit too fast on those steep stairs with broken back legs. It crashes into some shelves at the bottom of the stairs.

The plywood boards of the cheap shelving unit crumple like wet paper, causing tools, boxes, and half-empty cans of paint to be hurled across the room.