One of Them?

Chapter Three: Uh oh.....

Dipper POV:
Ford seems stressed. The tests are coming back and Mabel seems a little off. Ford confined in me, saying that it was likely she contracted Sonkitranuim, a sickness that is contracted by contact with rips in the multiverse. I'm scared for Mabel. Did my tampering with the machine worsen the odds of her getting help? I really hope not.
                      Three hours later
Oh thank god. Ford says we're all clean. He's not sure what Mable's doing, but she's fine. I am so glad. I would have never have forgiven myself if- if something had happened. I was outside with Mable when Ford started calling me.
"DIPPER! COME HERE!" He shouted.
"I'll be right back, okay?" I said to Mabel. She just nodded. I ran over to Ford. " Yes?" I asked.
"The rift? It's cracking. We need to get the Alien Adhesive I told you about. Ready?" He explained.
"Wait wait wait.... What?" I asked.
"We haven't much time." He said.
"Oh, okay." I said. I was kind of panicking, but that was okay. It was just me being nervous. Everything was rushing by.
" By Mabel be back in minute!" I shouted to her.

After this because we all know what happens next

OoOoOoH shit.... The sky is vommiting nightmares. That, that is not good. Bill is in our universe and he can't know who I am. I run towards the mystery shack with Ford and shut the door.
"The unicorn spell will keep the weirdness out, right?" Dipper asked.
"Yes, it will. We just need to stop Bill." Ford said. "Get the resistance up, will you?"
"Of course." I said. I went out and rounded up all of the townsfolk I could, including Pacifica and the Gleeful parents. Ford and I had discussed this a couple times, so I knew what to do
An hour later Ford came back.
"Bill has Mabel. Dipper, organize the people. I'm going downstairs." Ford said. He ran downstairs and we don't see him again.

Ford POV:
I ran downstairs. Oh God, what was Bill doing with my niece? Either way, I was comparing some data in my lab when I saw the blood. The blood Dipper gave and the blood processed was different. I wonder... Not now. I came back upstairs on time for breakfast the next day. I remember the fifth week of weirdmaggedon better than any point in my life. I found the blood tests again. I compared the blood and knew it was different. I matched no DNA from the blood. I ran the original blood through the machine, and I expected the results the next day. Dipper came down to call me up for dinner. I thought he paused when he saw the machine, but I'm sure it's just me. We head upstairs. I was ready for tomorrow.

Or so I thought.