When I got there, I said quickly, "Hi, Cam, going to see Sara," and left before he could say anything.
"Hey, Sara," I said as I walked in.
She gave me a weird look.
"What?"
"You've changed," she said, "and it wasn't for the better."
"What do you mean? I'm still me."
"You may still be you, but your intentions are no longer for good."
"What are you talking about?" I asked in fake curiosity.
"Your heart, your soul, everything about you has become dark."
"I'm pretty sure I don't know what you're talking about."

"And I'm pretty sure you do," she snapped. "You're evil now. Leave. Just go away."
A part of me realized she knew, and yet another part of me hurt because she didn't want me there anymore. But I didn't know why.
And as I left, I felt guilty about what I was going to do.
"Hi, Cam," I said.
"Hm? Oh, hi, Dustin," he replied. "Can't talk right now, I've just finished my antidote."
"Drink it up," I said.
And he did, and as soon as he had, he began to writhe in pain, so much that I had to hide my enjoyment.
Then he fell to the ground and remained motionless.
"Dustin, what has happened?" Sensei said, appearing out of nowhere.
"He just took the antidote," I replied, "It's nothing, really, he'll be fine later."
Sensei gave me an odd look, but left.
Good, I thought and I implemented my plan.