Try Knocking

You knock and still get no answer, but before you can knock again, the door creaks open. You slowly open the door and see his room empty. Before you decide to leave and look somewhere else, you notice a piece of paper out of the corner of your eye. You're horrified by what you see. The piece of paper is a note... written in blood. You cautiously pick up the note and see the blood is already dried, meaning it was written more than an hour ago. You read the note.

Thank you for your brother, he will be an excellent addition to us. Get used to the idea of not having a brother, little Nephilim.

In a panic, you grab your phone. You bring up the contacts on your phone and open the one named "Twin♊". Before you press the call button, you see your brother's phone on the floor. 'Shit... I need to call Rowen.' You click on the contact named "Hippie Witch