You were talking online with some of your friends on Discord as someone said as a joke they would "send Tessa as a drone to your location"...or at least...you preceived it as a joke.

7 days later... When you come home from school, the door to your room is open yet you remember clearly that you closed it. There's no laundry on the bed so it's not because of your parents..

Then you notice movement underneath your bed..as well as a red light and 4 blue lights underneath the bed. Right at that moment you get a notification from that same guy saying that she arrived yet and is underneath the bed, hiding.