Adventure time

A angle apeepers in the sky. You hear a werewolf howl, a demon shows up to fight and an alien grabs for blouse and pulls you into its ship. The angle from bellow starts yelling “Emily! Emily!” You wake up, your mom is calling you “Emily! If you don’t wake up and come down here right now! It’s your 16th birthday! Come on!” You realize where you are, and jump out of bed, swing on a T-shirt and jeans and head downstairs. You expect a cake and gifts but what you see, shocks you.