You hear a polite knock on the door . The closet door .

Dagny was studying at her desk like she always did at 3PM on Tuesday, before she had tea with her grandmother, who would be over shortly. Dagny's short brown hair was drawn back into a bun and her thick black glasses masked her eyes. She was taking a second look over the essay she had written a week ago and gnawed on her tongue as if to punish herself for her lousy sentence structure. 
 
 From behind her, she heard a knocking on what she only could assume was the front door and stood up to answer. She was somewhat relieved that her grandmother was early, because it meant that she could procrastinate on her essay for a while longer while they caught up wtih each other. She trundled down the stairs and opened the front door to her townhouse, only revealing bleak autumnal colors and scraping dry leaves on her door mat. 
 
 She closed the door and twisted her brow into a frustrated, but curious distortion. Then, she heard a knocking again, but it was faint- coming from her room. She felt her body stiffen for a moment, frozen with fear as she looked at the door frame of the room. She remembered some sage advice from her best friend, Laquisha: `` only these dumbass white motherfuckers run upstairs in horror movies, that's why they always get killed, shiiit.'' 
 
 She knew Laquisha was right, and she also knew that although she was white, she was n't a dumbass white mothefucker. Nonetheless, the knocking did spark her curiosity. She had opened the closet only a half hour ago and had n't left the room since then. Whatever was knocking on her closet door was not a rapist or a robber, and she did n't take the idea of monsters very seriously, or really anything paranormal. If it was something paranormal, why would it knock? Why not barge in and destroy her completely? Whatever it was, she was a bio-med major, and if it was something weird, maybe something... new, she wanted to see it. She wanted to discover it. 
 
 She had to investigate- her curiosity outweighed her fear, and even if Laquisha called her a dumbass motherfucker later, she had to know what was behind the closet door. She armed herself with a baseball bat she kept under her couch and crept slowly upstairs. She came to the closet and the knocking continued- three more paced, even knocks. They dropped a sense of dread into her tummy as she realized that she had crossed the mental point of no return. She inched her hand toward the door, feeling terror consuming her as her fingers wrapped around the metal knob. 
 
 She yanked the door open quickly and peaked her head around. There was a brown haired woman standing on the other side, clutching a small sphere in her left hand- some masterfully crafted alien technology. The woman smiled timidly. She was completely human and very normal, but wore clothes from a much different time period- Rennisance if Dagny was guessing. The woman waved with her right hand and calmly said, 
 
 `` Um... hello. Can I use your phone? Do you have phones in this era?''
