She notices you

"Show yourself!" She said loudly. "I know you're there so just open the door."

"Mom?! What are you going to do with Jess? I knew that thing was evil. That's why I threw it away" You say.

"It's true son, this amulet is evil. However one who can resist the temptation of the evil this amulet can cause it be used for good. In fact let's demonstrate that right now, shall we? Starting now you will stay in this room until I say you can leave."

"WHAT!!!" You reply, trying to lift up your legs, but to no avail.

Now then, Let's bring Jess back here, but first. This body is not allowed to leave the room until I say so as well." Megan remarks before exiting your sister's body. "Hello Jess. Ready for your punishment?" Jessica bolts for the door but finds herself unable to open the door, no matter how hard she tried. "You two seem to like getting on each others nerves, so I've decided for your first punishment after you two leave this room you will go to bed and in the morning you two will be **** to act like each other and if you want to save yourselves some trouble I don't want to see you arguing with each other. Now let's begin our punishment. You two can leave my room now. I need to get back to sleep.