Exciting news, everyone! I solved the case!
When Brach had finished with his investigation, I had wondered why the monster(s) would attack the sacred Lord of the Rings dolls in the garage. I hadn't shared my insight with Brach at the time, but I really thought there might be something to those movies that we weren't seeing. I knew the human pet had all three Lord of the Rings movies on DvD, and so while she slept, I popped one of them into the fancy play machine.
That's when I saw this scene:
This funny looking homo sapien was talking to himself! I thought, Wow, that seems so familiar. That's when I overheard Isis talking while she stood staring into the water bowl:
"Ok, I get it. Sheesh! So do you know who tore up the boxes?"
"Of course, silly. We did."
"But that makes no sense."
"Yes it does, silly. We've been ripping them apart for months now. We tore the bed up too, and the Mama has been on our case about it."
"How am I going to explain this to everyone? I had Brach come to investigate! He's going to be so angry I made him come down here. Everyone will think I am a liar. They will..."
"They'll never know because you aren't going to tell them, silly."
"Are you sure?"
"Of course, I'm sure, silly."
"Ok then. I never tell them, and I just talk about the monster. "
"That's right, silly!"
I leapt off the couch and dashed to the water bowl. "Isis! YOU tore the boxes! YOU tore the bedspring!" I screamed.
"I so did not! You always blame everything on me! I didn't do anything! There's a real monster in this house and..."
"YOU are the MONSTER!" I shouted. "I can't believe you! Now look what you've done! Brach came all the way down here from West Michigan, traveling over 1228.28 miles, and for what? Just to find out YOU did it? You're sicker than I thought, Isis. I'm so ashamed of you," I said angrily.
"LEAVE ME AND MYSELF ALONE!" she cried and ran off with claws flailing into the human pet's bedroom.
I just want everyone to know that I will be seeking help for Isis. I believe she can be rehabilitated, but I am sure it will take some time. I would like to extend a special thanks to Brach for coming down to investigate, but in hindsight, I wish it had been for a better purpose than to uncover the truth concerning my sister.
Forgive her, friends. She knows not what she does.