Shaun walked with a confident stride, his laughter mingling with the rustling leaves. Zach started to whistle a jaunty tune, his eyes glinting with mischief. "Don't do that," Erin cautioned, her voice tinged with a hint of fear. "Why not?" Zach teased, glancing back with a smirk. "It attracts evil spirits," Erin insisted, her eyes darting nervously.

Zoe halted abruptly, her face pale. "Shh, I think I heard something," she whispered, peering into the gathering shadows. Shaun chuckled, dismissing her concern. They continued walking, unaware of the shadow that slipped silently behind a tombstone, watching them with dark intent.

Shaun lost himself in the crowd, the earlier unease forgotten amidst the revelry. Erin stayed close to him, her eyes occasionally drifting towards the window, where the night pressed in like a living thing.

"We'll catch up with you guys later," Zach called over his shoulder, grinning. "Be safe," Zoe added, her smile a little forced.

Zach paused, a frown creasing his brow. "Did you feel that?" Zoe asked, her voice trembling slightly. Without warning, the shadow lunged, silent and swift, dragging them back towards the grave from which it emerged.

Shaun stared at Erin, disbelief etched on his face. "I told him not to whistle," Erin murmured, her voice breaking. They clung to each other, a silent promise to heed the warnings of the night.