reverts from eveil

"Too late!" crowed the spirit. It shot into the air, swirling around over me, gloating. "Whatever you have done to my thoughts, the master will not be pleased that you have meddled with his servant."
The cold started spreading, and it wasn't purely physical. There was an empty, heartless void to it, a starless, frozen quality that raked at me- not just my body, but me-with a mindless hunger. And I could feel it sending tendrils out through me, slowing my heartbeat, making it impossible to breathe.
"Do you know how long I've been waiting for that?" the spirit purred, drifting back and forth over me. "Sitting there locked behind my own thoughts? Waiting for the chance to fight free? Finally, you thick-witted ogre, I get to leave your stupidity behind."
"Bob," I choked out. "This conversation is over."
The spirit's scarlet lights flared to sudden, incandescent rage and it screamed, a wailing sound that rattled my shelves and felt like it was splitting my head. Then the cloud was ripped backward across the room, sucked into the eyeholes of the skull as though down a hellish drain.
Once of the last of the motes went flickering back into the skull, the horrible cold faltered a little, and I curled up, focusing my will and trying to push it away. It took me a while, and that hideous void-presence lingered against my fingernails, even after I could feel my fingers again, but after a little while I was able to sit up.
After that I just curled up my knees against my chest, shocked and scared half out of my mind. I had always known that Bob was an incredibly valuable asset, and that no spirit with as much knowledge as he had could be weak. But I had not been at all prepared for the sheer power he had wielded, or for the malice with which he did it. Bob wasn't supposed to be a sleeping nightmare waiting to wake up. Bob was supposed to be my wisecracking porta-geek.
Good Lord, I couldn't remember the last time I'd confronted a demon with that much raw psychic power. If I'd been a second slower, or- stars and stones-if I hadn't remembered the condition that would banish Bob back to the skull and once again remove the dark memories, I'd be dead now. Or maybe dead and then some.
And it would have been my own stupid fault, too.
"Harry?" Bob said.
I flinched and let out a small squeaking sound. Then I got hold of myself and blinked up at the skull. It rested on its shelf, and its orange-gold eye lights were back to their usual color. "Oh. Hey."
Bob's voice was very quiet. "Your lips are blue."
"Yeah."
"What happened?" Bob asked.
"It got kind of cold in here."
"Me."
"Yeah."
"I'm sorry, Harry," Bob said. "I tried to tell you."
"I know," I said. "I had no idea."
"Kemmler was bad, Harry," Bob said. "He... he took what I was. And he twisted it. I destroyed most of my memories of my time with him, and I locked away everything I couldn't. Because I didn't want to be like that."
"You won't," I told him quietly. "Now hear this, Bob. I command you never to recover those memories again. Never to let them out again. Never to obey any command to unleash them again. From here on out they sleep with the fishes. Understand me?"
"If I do," Bob said carefully, "I won't be able to do much to help you, Harry. You'll be on your own."
"Let me worry about that," I said. "It's a command, Bob."
The skull let out a slow sigh of relief. "Thank you, Harry."
"Don't mention it," I said. "Literally."


Dead Beat Chapter 3, Page 28-30