As Lena arrived at the mansion just before sunset, she was taken aback by the grandeur of the place. The mansion was a sprawling edifice with tall pillars and an imposing façade. The grounds were vast and shrouded in darkness, with only a few dimly lit lamps illuminating the way.

As she entered the main hall, the sight that greeted her was nothing short of spectacular. There were people from all walks of life, dressed in elaborate costumes that ranged from spooky and macabre to whimsical and playful. The atmosphere was electric, with music blaring from the speakers and the guests dancing and laughing.

Lena couldn't help but feel a sense of wonder and excitement as she mingled with the other guests. She met people she had never seen before, and some who seemed familiar but whom she couldn't quite place. She laughed and danced and drank, forgetting all her worries and letting herself get carried away by the festivities.

However, as the night wore on, Lena noticed that something was off about the party. People seemed to be disappearing one by one, and no one seemed to know where they had gone. The once-loud music and laughter began to fade away, replaced by a deafening silence that sent shivers down Lena's spine.

As she walked through the halls, Lena began to notice strange symbols and occult decorations adorning the walls. The carefree and whimsical atmosphere of the party was slowly giving way to an eerie and unsettling one, and Lena started to feel a creeping sense of dread rising within her.

Despite the growing sense of unease, Lena resolved to enjoy the night to the fullest. She danced and drank and laughed, determined to forget the strange happenings around her. But as the night wore on, Lena would soon find out that there was more to the party than just fun and games.

To be continued...