A few weeks passed, and I grew more and more each day. I grew so much that Boss had to get me a new cage.

It essentially blocked off an entire five-foot corner of the room and reached the ceiling.

Every part of me had grown, my toes looked more like Boss' fingers now.

I could stand on two legs and I could hear everything. I could even see colors.

Boss was a lot warier of me now, fearful even. He didn't beat me anymore.

Boss was also struggling to feed me, I ate an entire bag of dog food a day, and he didn't buy little bags either.

Boss walked in pushing a dolly with a bunch of boxes on it, plopping each box on the table with a grunt.

I could hear whatever it was inside the box clinking as he dropped it. I tilted my head at the noise, what was in there?

Boss grabbed a box cutter, cutting open each box, "Yes... A very big dog..." he muttered to himself as he pulled out a very bulky, heavy-looking collar. It didn't really have a buckle, it had a lock attached to the side.

As he put it on the table, I could see a bulky chain attached to the side of it. It wasn't a very long chain, a few feet at most.

I shifted uneasily as Boss carried the collar to my cage.
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.
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The other boxes contained the same collar but in different sizes.

I had finally stopped growing. The new cage Boss has bought for me barely fit me.

He seemed to be more confident around me with the bulky collar and chain, but it made my neck ache as time went on. Boss added shackles to keep my front legs close to the wall behind me.

He seemed to grow more confident with new additions.

So much so, that he'd started to beat me again so he could start experimenting again, he started using a wooden bat and a metal pipe to hurt me.

Except, now I didn't need the serum. I healed faster than I had before, which frustrated him until he realized he had an entirely new line of experiments.

"I can just get another dog," he muttered to himself at the realization.

A cruel smile crossed his face as he picked up the pipe from the corner of the room.

I flattened my ears and growled deeply.

He tsked me. "You should know better than that by now," he scolded, reeling his arm back for the swing.

I let out a snarl as it found its mark across my muzzle.

I decided that I had had enough, I reeled my own arm back, feeling the slack in the chains, I jerked it forward as hard as I could.

I felt something in me take great pleasure as the chain snapped and the fear that found it's way onto Boss' face.

I did the same with the other leg as he slammed the door of my cage closed, making a desperate attempt to put the lock on.

It was too late for him as I forced it open, the door threw him across the room as I did so.

He landed on his side, quickly rolling over and scrambling to get away from me.

I made my decision there that I would not allow that.

I growled, taking my time as I made my way over to him, teeth bared.

Boss finally made it to his feet, making a mad dash for the door.

I let out a guttural snarl as I leapt across the room, landing on his back.

He screamed as I raked my claws across the back of his rib cage.

I relished in his screams for a few moments before I tore into the back of his neck.

Silence and the taste of iron on my tongue were all I could feel.

The pain from my muzzle was gone and I felt... light. So light...