The door stopped shuddering, and the thing outside leaped off the stoop to circle around back. The back door. I ran into the kitchen just in time to see my mother yank the screen off its hinges and smash the little window high in the door. Her whole arm snaked through, heedless of broken glass, a crablike blue hand skittering in search of the lock. Half her terrible face was visible in the opening, the mad dilated eye bulging with furious greed.

Weeping, I jammed a chair under the doorknob, and shakily said, "Mum, stop." I couldn't look at her.

"Lulu," she grunted. "Lulu help. Help Mummy, Lulu. Come out." Her voice was guttural, masculine. The sound of it made my hair prickle like static electricity.

"Mum, please," I wailed. "It's me! Try to remember. Try."

Her efforts became more frenzied, but it was no use-she couldn't reach the knob. Her arm withdrew like an eel, and I lost sight of her. Heart racing, I looked out the window over the sink just in time to catch a blur vanishing around the front of the house. There was a loud crash of breaking glass-the living-room window. Forcing myself to move, I arrived there just in time to see not only my mother but two more frenetic human monsters floundering in over the high windowsill. One of them had no eyes. It was a freakish feat of agility, this squirming invasion, and in a way it cleared my head, because it was nothing my real mother could have ever done in her wildest dreams.

Flying on pure instinct, I barely spared them a glance as I rushed past and into the first door off the hall. I half shut myself in the bathroom before I realized the knob was missing, then lunged for the next nearest door, one that opened on a shelved linen closet packed with canned goods and emergency supplies. Damn it! Footsteps pounded toward me-the little daylight filtering through from the living room was suddenly blocked by the press of approaching bodies. I didn't dare look back, just barreled through the next door and locked it behind me. As I whimpered there in the dark, the door beat hard against my shoulder, shaking the whole house: BAM! BAM! BAM!