Illusion

Sebastian went out of the mansion, closing the door behind him. He whistled and a crow came flying towards him to stop on his fingers, wrapping its legs around it.

Sebastian looked at the crow and whispered something. The eye color of the crow changes to red before turning back to its usual black.

It flapped its wings and flew away. Sebastian placed his hand on his chest and looked around the mansion. He walked forward, taking two steps forward, and at the speed of light, he disappeared as if he weren't there just a moment ago.

Sebastian appeared in front of the building. It was located far back in the woods. 

He wouldn't have blindly walked past this in broad daylight, but the smell that invaded his nostrils told him there was more to it.

Sebastian pushed the door open, walked in, and saw there were cobwebs everywhere. Darkness enveloped the room, with only a bulb flickering in the middle of the room.