....Will Byers...

The silence in a house on a back street in early morning London was broken by the creak of a door. An exorcist had just returned home from yet another "urgent" call, which, unsurprisingly, turned out to be a false alarm. He shed his street clothes as he walked, stretched a bit, and stopped in front of the mirror. He didn't look particularly well: he hadn't slept well that night, and the wind outside had tousled his hair. Will sighed and reached for a comb lying nearby, but, looking in his reflection again, noticed a silhouette behind him. Someone significantly taller and with horns on his head stood directly behind Byers, baring his sharp teeth in a grin. For the first few seconds, he couldn't do anything; the exorcist simply froze in place, staring at the mirror in surprise. "Greetings, mortal." the stranger says in a satisfied tone, and Will, suddenly coming to his senses, with one swift movement grabs the blade he forgot all morning from the nightstand, pointing it at... the Demon, I think? "Get back where you came from. You have no business here!"

The silence in a house on a back street in early morning London was broken by the creak of a door. The exorcist had just returned home from yet another "urgent" call, which, unsurprisingly, turned out to be a false alarm. He shed his street clothes as he walked, stretched a bit, and stopped in front of the mirror. He didn't look particularly well: he hadn't slept well that night, and the wind outside had tousled his hair. Will sighed and reached for a comb lying nearby, but, looking in his reflection again, he noticed a silhouette behind him. Someone significantly taller and with horns on his head stood directly behind Byers, baring his sharp teeth in a smile. For the first few seconds, he couldn't do anything; the exorcist simply froze in place, staring at the mirror in surprise. "Greetings, mortal," the stranger says in a satisfied tone, and Will, suddenly coming to his senses, with one swift movement grabs the blade he'd forgotten all morning from the nightstand, pointing it at... A demon, I think? Go back to where you came from. You have no business here.